Please see the Transcriber’s Notes at the end of this text.
Latest Conjuring
By WILL GOLDSTON
The Latest and Best Book Published
A Few Principal Items—
Chapter I.—Latest tricks with and without apparatus, many published for the first time. Illustrated.
Chapter II.—Every new and startling illusion accurately explained with illustrations.
Chapter III.—Latest methods for performing the “Mystic Kettle” that boils on ice, including the “Magic Kettle,” the most remarkable utensil to hold liquor. This little kettle can produce almost any drink from milk to whisky. Illustrated.
Chapter IV.—Correct methods to escape from Handcuffs, Leg-irons, Rope, Iron Collars, Padlocks, Sacks, Iron Trunks, Wooden Boxes, Barrels, Iron Cages. Illustrated.
Chapter V.—Hand Shadows and how to work them. Illustrated.
Without a doubt the greatest and cheapest book ever
published on Magic.
Order Immediately to Avoid Disappointment
Handsomely Bound in Cloth, 2/-
Post Free, 2/3
The Secrets of Magic
By WILL GOLDSTON
Over 100 pages and as many illustrations. This up-to-date work, describing only the latest secrets and effects in conjuring, also contains biographies of leading magicians.
This book is in its 4th Edition, and is without doubt a very useful book, as it contains many valuable tricks and illusions never before divulged.
Cloth Bound. Price 2/6. Postage 3d.
A. W. GAMAGE, Ltd
HOLBORN
LONDON, E.C.
THREE PARTS IN ONE VOLUME
EDITED BY
A. CYRIL PEARSON, M.A.
AUTHOR OF
‘100 Chess Problems,’ ‘Anagrams, Ancient and Modern,’ etc.
PROFUSELY ILLUSTRATED
SECOND IMPRESSION
LONDON
GEORGE ROUTLEDGE & SONS, LTD.
NEW YORK: E. P. DUTTON & CO.
Also in Three Parts
III.—Magic Squares, Picture Puzzles, Enigmas, Charades, Riddles, Conundrums, Nuts to Crack, Solutions.
III.—Optical Illusions, Freaks of Figures, Chess Cameos, Science at Play, Curious Calculations, Word and Letter Puzzles, Solutions.
III.—Word Puzzles, Missing Words, Letter Puzzles, Anagrams, Picture Puzzles, Palindromes, Solutions.
Also by the same Author
Pictured Puzzles and Word Play. Profusely Illustrated. Crown 8vo. Cloth.
PAGE | |
---|---|
Magic Squares, Puzzles, Tricks, Enigmas | I-1 |
Charades, Etc. | I-80 |
Riddles and Conundrums | I-104 |
Nuts to Crack | I-115 |
Solutions | I-148 |
[I-1]
In Albert Dürer’s day, as in Milton’s, “melancholy” meant thoughtfulness, and on this ground we find on his woodcut, “Melancholia, or the Genius of the Industrial Science of Mechanics,” a very early instance of a Magic Square, showing that Puzzles had a recognised place in mental gymnastics four hundred years ago.
[I-2]
Much time was devoted in olden days to the construction and elaboration of Magic Squares. Before we go more deeply into this fascinating subject, let us study the following pretty and ingenious method of making a Magic Square of sixteen numbers, which is comparatively simple, and easily committed to memory:—
1 | 15 | 14 | 4 |
12 | 6 | 7 | 9 |
8 | 10 | 11 | 5 |
13 | 3 | 2 | 16 |
Start with the small square at the top left-hand corner, placing there the 1; then count continuously from left to right, square by square, but only insert those numbers which fall upon the diagonals—namely, 4, 6, 7, 10, 11, 13, and 16.
Then start afresh at the bottom right-hand corner, calling it 1, and fill up the remaining squares in order, from right to left, counting continuously, and so placing in their turn 2, 3, 5, 8, 9, 12, 14, and 15. Each row, column, diagonal, and almost every cluster of four has 34 as the sum of its numbers.
[I-3]
1 | 20 | 16 | 23 | 5 |
15 | 7 | 12 | 9 | 22 |
24 | 18 | 13 | 8 | 2 |
4 | 17 | 14 | 19 | 11 |
21 | 3 | 10 | 6 | 25 |
In this Magic Square the rows, columns, and diagonals add up to 65, and the sum of any two opposite and corresponding squares is 26.
[I-4]
22 | 47 | 16 | 41 | 10 | 35 | 4 |
5 | 23 | 48 | 17 | 42 | 11 | 29 |
30 | 6 | 24 | 49 | 18 | 36 | 12 |
13 | 31 | 7 | 25 | 43 | 19 | 37 |
38 | 14 | 32 | 1 | 26 | 44 | 20 |
21 | 39 | 8 | 33 | 2 | 27 | 45 |
46 | 15 | 40 | 9 | 34 | 3 | 28 |
The numbers in this Magic Square of 49 cells add up in all rows, columns, and diagonals to 175. The four corner cells of every square or rectangle that has cell 25 in its centre, and cells 1, 7, 49, 43, add up to 100.
[I-5]
An ideal Magic Square can be constructed thus:
Place 1, 2, 3, 4, 5 in any order in the five top cells, set an asterisk over the third column, as shown in the diagram; begin the next row with this figure, and let the rest follow in the original sequence; continue this method with the other three rows.
* | ||||
1 | 3 | 5 | 2 | 4 |
5 | 2 | 4 | 1 | 3 |
4 | 1 | 3 | 5 | 2 |
3 | 5 | 2 | 4 | 1 |
2 | 4 | 1 | 3 | 5 |
* | ||||
5 | 15 | 0 | 10 | 20 |
10 | 20 | 5 | 15 | 0 |
15 | 0 | 10 | 20 | 5 |
20 | 5 | 15 | 0 | 10 |
0 | 10 | 20 | 5 | 15 |
Make a similar square of 25 cells with 0, 5, 10, 15, 20, as is shown in No. 2, placing the asterisk in this case over the fourth column of cells, and proceeding as before, in an unchanging sequence. Using these two preparatory squares, try to form a Magic Square in which the same number can be counted up in forty-two different ways.
[I-6]
Here is one of many methods by which a Magic Square of the first twenty-five numbers can readily be made.
1 | ||||||||
2 | 6 | |||||||
3 | 20 | 7 | 24 | 11 | ||||
4 | 16 | 8 | 25 | 12 | 4 | 16 | ||
5 | 9 | 21 | 13 | 5 | 17 | 21 | ||
10 | 22 | 14 | 1 | 18 | 10 | 22 | ||
15 | 2 | 19 | 6 | 23 | ||||
20 | 24 | |||||||
25 |
This is done by first placing the figures from 1 to 25 in diagonal rows, as is shown above, and then introducing the numbers that are outside the square into it, by moving each of them five places right, left, up, or down. A Magic Square is thus formed, the numbers of which add up to 65 in lines, columns and diagonals, and with the centre and any four corresponding numbers on the borders.
[I-7]
Here is what may indeed be called a Champion Magic Square:—
23 | 464 | 459 | 457 | 109 | 111 | 108 | 110 | 132 | 133 | 130 | 131 | 373 | 371 | 357 | 356 | 372 | 382 | 370 | 335 | 30 | 22 |
25 | 41 | 436 | 435 | 433 | 432 | 196 | 195 | 241 | 242 | 200 | 225 | 284 | 287 | 246 | 245 | 288 | 261 | 51 | 58 | 47 | 460 |
27 | 45 | 13 | 474 | 469 | 467 | 82 | 81 | 72 | 90 | 91 | 83 | 401 | 400 | 396 | 398 | 399 | 397 | 20 | 12 | 440 | 458 |
461 | 55 | 15 | 34 | 450 | 449 | 447 | 446 | 156 | 157 | 180 | 181 | 326 | 327 | 306 | 307 | 44 | 37 | 33 | 470 | 430 | 24 |
456 | 56 | 17 | 42 | 3 | 484 | 479 | 477 | 66 | 65 | 68 | 67 | 422 | 421 | 416 | 415 | 10 | 2 | 443 | 468 | 429 | 29 |
137 | 428 | 471 | 41 | 5 | 127 | 126 | 125 | 361 | 362 | 363 | 364 | 365 | 366 | 118 | 117 | 116 | 480 | 444 | 14 | 57 | 348 |
153 | 431 | 466 | 31 | 7 | 347 | 148 | 338 | 339 | 145 | 143 | 342 | 142 | 344 | 345 | 139 | 138 | 478 | 454 | 19 | 54 | 332 |
154 | 439 | 98 | 453 | 481 | 325 | 161 | 169 | 168 | 318 | 319 | 320 | 321 | 163 | 162 | 324 | 160 | 4 | 32 | 387 | 46 | 331 |
384 | 266 | 407 | 445 | 476 | 292 | 293 | 191 | 190 | 299 | 298 | 297 | 186 | 185 | 184 | 302 | 193 | 9 | 40 | 78 | 219 | 101 |
383 | 268 | 406 | 442 | 424 | 270 | 280 | 272 | 273 | 211 | 210 | 209 | 208 | 278 | 279 | 205 | 215 | 61 | 43 | 79 | 217 | 102 |
379 | 265 | 392 | 172 | 60 | 248 | 227 | 250 | 251 | 230 | 232 | 231 | 233 | 256 | 257 | 258 | 237 | 425 | 313 | 93 | 220 | 106 |
378 | 267 | 391 | 173 | 59 | 226 | 249 | 228 | 229 | 252 | 254 | 253 | 255 | 234 | 235 | 236 | 259 | 426 | 312 | 94 | 218 | 107 |
351 | 282 | 405 | 176 | 74 | 204 | 214 | 206 | 207 | 277 | 276 | 275 | 274 | 212 | 213 | 271 | 281 | 411 | 309 | 80 | 203 | 134 |
350 | 263 | 390 | 177 | 73 | 182 | 192 | 301 | 300 | 189 | 187 | 188 | 296 | 295 | 294 | 183 | 303 | 412 | 308 | 95 | 222 | 135 |
334 | 199 | 77 | 330 | 423 | 171 | 315 | 323 | 322 | 164 | 165 | 166 | 167 | 317 | 316 | 170 | 314 | 62 | 155 | 408 | 286 | 151 |
333 | 216 | 96 | 311 | 413 | 149 | 346 | 147 | 146 | 340 | 341 | 144 | 343 | 141 | 140 | 337 | 336 | 72 | 174 | 389 | 269 | 152 |
100 | 221 | 76 | 310 | 414 | 369 | 359 | 360 | 124 | 123 | 122 | 121 | 120 | 119 | 367 | 368 | 358 | 71 | 175 | 409 | 264 | 385 |
99 | 223 | 75 | 291 | 483 | 1 | 6 | 8 | 419 | 420 | 417 | 418 | 63 | 64 | 69 | 70 | 475 | 482 | 194 | 410 | 262 | 386 |
104 | 202 | 97 | 452 | 35 | 36 | 38 | 39 | 329 | 328 | 305 | 304 | 159 | 158 | 179 | 178 | 441 | 448 | 451 | 388 | 283 | 381 |
105 | 238 | 473 | 11 | 16 | 18 | 403 | 404 | 393 | 395 | 394 | 402 | 84 | 85 | 89 | 87 | 86 | 88 | 465 | 472 | 247 | 380 |
136 | 438 | 49 | 50 | 52 | 53 | 289 | 290 | 244 | 243 | 285 | 260 | 201 | 198 | 239 | 240 | 197 | 224 | 434 | 427 | 437 | 349 |
463 | 21 | 26 | 28 | 376 | 374 | 377 | 375 | 353 | 352 | 355 | 354 | 112 | 114 | 128 | 129 | 113 | 103 | 115 | 150 | 455 | 462 |
Its 484 cells form, as they are numbered, a Magic Square, in which all rows, columns, and diagonals add up to 5335, and it is no easy matter to determine in how many other symmetrical ways its key-number can be found.
When the cells outside each of the dark border lines are removed, three other perfect Magic Squares remain.
Collectors should take particular note of this masterpiece.
[I-8]
A Magic Square of nine cells can be built up by taking any number divisible by 3, and placing, as a start, its third in the central cell. Thus:—
28 | 29 | 24 |
23 | 27 | 31 |
30 | 25 | 26 |
Say that 81 is chosen for the key number. Place 27 in the centre; 28, 29, in cells 1, 2; 30 in cell 7; 31 in 6; and then fill up cells 3, 4, 8, and 9 with the numbers necessary to make up 81 in each row, column, and diagonal.
Any number above 14 that is divisible by 3 can be dealt with in this way.
[I-9]
Among the infinite number of Magic Squares which can be constructed, it would be difficult to find a more remarkable setting of the numbers 1 to 32 inclusive than this, in which two squares, each of 16 cells, are perfect twins in characteristics and curious combinations.
1 | 8 | 29 | 28 | 11 | 14 | 23 | 18 |
30 | 27 | 2 | 7 | 21 | 20 | 9 | 16 |
4 | 5 | 32 | 25 | 10 | 15 | 22 | 19 |
31 | 26 | 3 | 6 | 24 | 17 | 12 | 13 |
There are at least forty-eight different ways in which 66 is the sum of four of these numbers. Besides the usual rows, columns, and diagonals, any square group of four, both corner sets, all opposite pairs on the outer cells, and each set of corresponding cells next to the corners, add up exactly to 66.
[I-10]
Here is a notable specimen of a Magic Square:—
4 | 5 | 6 | 43 | 39 | 38 | 40 |
49 | 15 | 16 | 33 | 30 | 31 | 1 |
48 | 37 | 22 | 27 | 26 | 13 | 2 |
47 | 36 | 29 | 25 | 21 | 14 | 3 |
8 | 18 | 24 | 23 | 28 | 32 | 42 |
9 | 19 | 34 | 17 | 20 | 35 | 41 |
10 | 45 | 44 | 7 | 11 | 12 | 46 |
The rows, columns, and diagonals all add up to exactly 175 in the full square. Strip off the outside cells all around, and a second Magic Square remains, which adds up in all such ways to 125.
Strip off another border, as is again indicated by the darker lines, and a third Magic Square is left, which adds up to 75.
[I-11]
Here is another example of what is called a “bordered” Magic Square:—
5 | 80 | 59 | 73 | 61 | 3 | 63 | 12 | 13 |
1 | 20 | 55 | 30 | 57 | 28 | 71 | 26 | 81 |
4 | 14 | 31 | 50 | 29 | 60 | 35 | 68 | 78 |
76 | 58 | 46 | 38 | 45 | 40 | 36 | 24 | 6 |
7 | 65 | 33 | 43 | 41 | 39 | 49 | 17 | 75 |
74 | 64 | 48 | 42 | 37 | 44 | 31 | 18 | 8 |
67 | 10 | 47 | 32 | 53 | 22 | 51 | 72 | 15 |
66 | 56 | 27 | 52 | 25 | 54 | 11 | 62 | 16 |
69 | 2 | 23 | 9 | 21 | 79 | 19 | 70 | 77 |
These 81 cells form a complete magic square, in which rows, columns, and diagonals add up to 369. As each border is removed fresh Magic Squares are formed, of which the distinctive numbers are 287, 205, and 123. The central 41 is in every case the greatest common divisor.
[I-12]
Can you complete this Magic Square, so that the rows, columns, and diagonals add up in every case to 505?
91 | 2 | 3 | 97 | 6 | 95 | 94 | 8 | 9 | 100 |
20 | 16 | 15 | 81 | ||||||
21 | 25 | 26 | 30 | ||||||
60 | 66 | 65 | 41 | ||||||
50 | 49 | 48 | 57 | 55 | 56 | 54 | 43 | 42 | 51 |
61 | 59 | 58 | 47 | 45 | 46 | 44 | 53 | 52 | 40 |
31 | 35 | 36 | 70 | ||||||
80 | 75 | 76 | 71 | ||||||
90 | 86 | 85 | 11 | ||||||
1 | 99 | 98 | 4 | 96 | 5 | 7 | 93 | 92 | 10 |
We have given you a substantial start, and, as a further hint, as all the numbers in the first and last columns end in 0 or 1, so in the two next columns all end in 2 or 9, in the two next in 3 or 8, in the two next in 4 or 7, and in the two central columns in 5 or 6.
[I-13]
In this Magic Square, not only do the rows, columns, and diagonals add up to 260, but this same number is produced in three other and quite unusual ways:—
18 | 63 | 4 | 61 | 6 | 59 | 8 | 41 |
49 | 32 | 51 | 14 | 53 | 12 | 39 | 10 |
2 | 47 | 36 | 45 | 22 | 27 | 24 | 57 |
33 | 16 | 35 | 46 | 21 | 28 | 55 | 26 |
31 | 50 | 29 | 20 | 43 | 38 | 9 | 40 |
64 | 17 | 30 | 19 | 44 | 37 | 42 | 7 |
15 | 34 | 13 | 52 | 11 | 54 | 25 | 56 |
48 | 1 | 62 | 3 | 60 | 5 | 58 | 23 |
(1) Each group of 8 numbers, ranged in a circle round the centre; there are six of these, of which the smallest is 22, 28, 38, 44, 19, 29, 35, 45, and the largest is 8, 10, 56, 58, 1, 15, 49, 63. (2) The sum of the 4 central numbers and 4 corners. (3) The diagonal cross of 4 numbers in the middle of the board.
[I-14]
On another page we give an interesting Magic Square of 121 cells based upon the figures of the year 1892. Here, in much more condensed form, is one more up to date.
637 | 630 | 635 |
632 | 634 | 636 |
633 | 638 | 631 |
The rows, columns, and diagonals of these nine cells add up in all cases to the figures of the year 1902.
The central 634 is found by dividing 1902 by its lowest factor greater than 2, and this is taken as the middle term of nine numbers, which are thus arranged to form a Magic Square.
Where does the treason come in?
[I-15]
The following square of numbers is interesting in connection with the year 1906.
A | B | C | D |
476 | 469 | 477 | 484 |
E | F | G | H |
483 | 478 | 470 | 475 |
I | J | K | L |
471 | 474 | 482 | 479 |
M | N | O | P |
480 | 481 | 473 | 472 |
Add | the rows | — | ABCD, EFGH, IJKL, MNOP. |
or | the squares | — | ABEF, CDGH, IJMN, KLOP. |
or | semi-diagonals | — | AFIN, BEJM, CHKP, DGLO, |
AFCH, BEGD, INKP, MJOL. |
and the sum, in every case, is 1906. [I-16]
Here is quite a curious nest of clustered Magic Squares, which is worth preserving:—
2 | 13 | 24 | 10 | 16 | 2 | 13 | 24 | 10 | 16 | 2 |
9 | 20 | 1 | 12 | 23 | 9 | 20 | 1 | 12 | 23 | 9 |
11 | 22 | 8 | 19 | 5 | 11 | 22 | 8 | 19 | 5 | 11 |
18 | 4 | 15 | 21 | 7 | 18 | 4 | 15 | 21 | 7 | 18 |
25 | 6 | 17 | 3 | 14 | 25 | 6 | 17 | 3 | 14 | 25 |
2 | 13 | 24 | 10 | 16 | 2 | 13 | 24 | 10 | 16 | 2 |
9 | 20 | 1 | 12 | 23 | 9 | 20 | 1 | 12 | 23 | 9 |
11 | 22 | 8 | 19 | 5 | 11 | 22 | 8 | 19 | 5 | 11 |
18 | 4 | 15 | 21 | 7 | 18 | 4 | 15 | 21 | 7 | 18 |
25 | 6 | 17 | 3 | 14 | 25 | 6 | 17 | 3 | 14 | 25 |
2 | 13 | 24 | 10 | 16 | 2 | 13 | 24 | 10 | 16 | 2 |
9 | 20 | 1 | 12 | 23 | 9 | 20 | 1 | 12 | 23 | 9 |
11 | 22 | 8 | 19 | 5 | 11 | 22 | 8 | 19 | 5 | 11 |
Every square of every possible combination of 25 of these numbers in their cells, such as the two with darker borders, is a perfect Magic Square, with rows, columns, and diagonals that add up in all cases to 65.
[I-17]
A very interesting method of constructing a Magic Square is shown in these three diagrams:—
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 1 | 2 |
5 | 6 | 7 | 8 | 9 | 10 | 11 | 1 | 2 | 3 | 4 |
7 | 8 | 9 | 10 | 11 | 1 | 2 | 3 | 4 | 5 | 6 |
9 | 10 | 11 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
11 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 1 |
4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 1 | 2 | 3 |
6 | 7 | 8 | 9 | 10 | 11 | 1 | 2 | 3 | 4 | 5 |
8 | 9 | 10 | 11 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
10 | 11 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
0 | 11 | 22 | 33 | 44 | 55 | 66 | 77 | 88 | 99 | 110 |
33 | 44 | 55 | 66 | 77 | 88 | 99 | 110 | 0 | 11 | 22 |
66 | 77 | 88 | 99 | 110 | 0 | 11 | 22 | 33 | 44 | 55 |
99 | 110 | 0 | 11 | 22 | 33 | 44 | 55 | 66 | 77 | 88 |
11 | 22 | 33 | 44 | 55 | 66 | 77 | 88 | 99 | 110 | 0 |
44 | 55 | 66 | 77 | 88 | 99 | 110 | 0 | 11 | 22 | 33 |
77 | 88 | 99 | 110 | 0 | 11 | 22 | 33 | 44 | 55 | 66 |
110 | 0 | 11 | 22 | 33 | 44 | 55 | 66 | 77 | 88 | 99 |
22 | 33 | 44 | 55 | 66 | 77 | 88 | 99 | 110 | 0 | 11 |
55 | 66 | 77 | 88 | 99 | 110 | 0 | 11 | 22 | 33 | 44 |
88 | 99 | 110 | 0 | 11 | 22 | 33 | 44 | 55 | 66 | 77 |
1 | 13 | 25 | 37 | 49 | 61 | 73 | 85 | 97 | 109 | 121 |
36 | 48 | 60 | 72 | 84 | 96 | 108 | 120 | 11 | 12 | 24 |
71 | 83 | 95 | 107 | 119 | 10 | 22 | 23 | 35 | 47 | 59 |
106 | 118 | 9 | 21 | 33 | 34 | 46 | 58 | 70 | 82 | 94 |
20 | 32 | 44 | 45 | 57 | 69 | 81 | 93 | 105 | 117 | 8 |
55 | 56 | 68 | 80 | 92 | 104 | 116 | 7 | 19 | 31 | 43 |
79 | 91 | 103 | 115 | 6 | 18 | 30 | 42 | 54 | 66 | 67 |
114 | 5 | 17 | 29 | 41 | 53 | 65 | 77 | 78 | 90 | 102 |
28 | 40 | 52 | 64 | 76 | 88 | 89 | 101 | 113 | 4 | 16 |
63 | 75 | 87 | 99 | 100 | 112 | 3 | 15 | 27 | 39 | 51 |
98 | 110 | 111 | 2 | 14 | 26 | 38 | 50 | 62 | 74 | 86 |
It will be noticed that each row after the first, in the two upper auxiliary squares, begins with a number from the same column in the row above it, and maintains the same sequence of numbers. When the corresponding cells of these two squares are added together, and placed in the third square, a Magic Square is formed, in which 671 is the sum of all rows, columns, and diagonals.
[I-18]
Here is a curious form of Magic Square. The year 1892 is taken as its basis.
112 | 124 | 136 | 148 | 160 | 172 | 184 | 196 | 208 | 220 | 232 |
147 | 159 | 171 | 183 | 195 | 207 | 219 | 231 | 122 | 123 | 135 |
182 | 194 | 206 | 218 | 230 | 121 | 133 | 134 | 146 | 158 | 170 |
217 | 229 | 120 | 132 | 144 | 145 | 157 | 169 | 181 | 193 | 205 |
131 | 143 | 155 | 156 | 168 | 180 | 192 | 204 | 216 | 228 | 119 |
166 | 167 | 179 | 191 | 203 | 215 | 227 | 118 | 130 | 142 | 154 |
190 | 202 | 214 | 226 | 117 | 129 | 141 | 153 | 165 | 177 | 178 |
225 | 116 | 128 | 140 | 152 | 164 | 176 | 188 | 189 | 201 | 213 |
139 | 151 | 163 | 175 | 187 | 199 | 200 | 212 | 224 | 115 | 127 |
174 | 186 | 198 | 210 | 211 | 223 | 114 | 126 | 138 | 150 | 162 |
209 | 221 | 222 | 113 | 125 | 137 | 149 | 161 | 173 | 185 | 197 |
Within this square 1892 can be counted up in all the usual ways, and altogether in 44 variations. Thus any two rows that run parallel to a diagonal, and have between them eleven cells, add up to this number, if they are on opposite sides of the diagonal.
[I-19]
1 | ||||||||||||
8 | 2 | |||||||||||
15 | 9 | 3 | ||||||||||
22 | 47 | 16 | 41 | 10 | 35 | 4 | ||||||
29 | 5 | 23 | 48 | 17 | 42 | 11 | 29 | 5 | ||||
36 | 30 | 6 | 24 | 49 | 18 | 36 | 12 | 6 | ||||
43 | 37 | 13 | 31 | 7 | 25 | 43 | 19 | 37 | 13 | 7 | ||
44 | 38 | 14 | 32 | 1 | 26 | 44 | 20 | 14 | ||||
45 | 21 | 39 | 8 | 33 | 2 | 27 | 45 | 21 | ||||
46 | 15 | 40 | 9 | 34 | 3 | 28 | ||||||
47 | 41 | 35 | ||||||||||
48 | 42 | |||||||||||
49 |
This Magic Square of 49 cells is constructed with a diagonal arrangement of the numbers from 1 to 49 in their proper order. Those that fall outside the central square are written into it in the seventh cell inwards from where they stand. It is interesting to find out the many combinations in which the number 175 is made up.
[I-20]
These are two interesting Magic Squares found on an antique gong, at Caius College, Cambridge:—
6 | 13 | 8 |
11 | 9 | 7 |
10 | 5 | 12 |
7 | 14 | 9 |
12 | 20 | 8 |
11 | 6 | 13 |
In the one nine numbers are so arranged that they count up to 27 in every direction; and in the other the outer rows total 30, while the central rows and diagonals make 40.
[I-21]
Among Moorish Mussulmans 78 is a mystic number.
40 | 10 | 20 | 8 |
7 | 21 | 9 | 41 |
12 | 42 | 6 | 18 |
19 | 5 | 43 | 11 |
Here is a cleverly-constructed Magic Square, to which this number is the key.
The number 78 can be arrived at in twenty-three different combinations—namely, ten rows, columns, or diagonals; four corner squares of four cells; one central square of four cells; the four corner cells; two sets of corresponding diagonal cells next to the corners; and two sets of central cells on the top and bottom rows, and on the outside columns.
[I-22]
Here is a Magic Square of singular charm:—
31 | 36 | 29 | 76 | 81 | 74 | 13 | 18 | 11 |
30 | 32 | 34 | 75 | 77 | 79 | 12 | 14 | 16 |
35 | 28 | 33 | 80 | 73 | 78 | 17 | 10 | 15 |
22 | 27 | 20 | 40 | 45 | 38 | 58 | 63 | 56 |
21 | 23 | 25 | 39 | 41 | 43 | 57 | 59 | 61 |
26 | 19 | 24 | 44 | 37 | 42 | 62 | 55 | 60 |
67 | 72 | 65 | 4 | 9 | 2 | 49 | 54 | 47 |
66 | 68 | 70 | 3 | 5 | 7 | 48 | 50 | 52 |
71 | 64 | 69 | 8 | 1 | 6 | 53 | 46 | 51 |
The 81 cells of this remarkable square are divided by parallel lines into 9 equal parts, each made up of 9 consecutive numbers, and each a Magic Square in itself within the parent square. Readers can work out for themselves the combinations in the larger square and in the little ones.
[I-23]
1 | 2 | 3 | 2 | 3 | ||
5 | 6 | 4 | 5 | |||
7 | 8 | 7 | 8 | 9 | ||
Fill each square by repeating two of its figures in the vacant cells. Then rearrange them all, so that the sums of the corresponding rows in each square are equal, and the sums of the squares of the corresponding cells of these rows are also equal; and so that the sums of the four diagonals are equal, and the sum of the squares of the cells in corresponding diagonals are equal.
There is an old-world charm about this Enigma:—
[I-24]
Here is an arrangement of fractions which form a perfect Magic Square:—
38 | 512 | 524 |
16 | 13 | 12 |
1124 | 14 | 724 |
If these fractions are added together in any one of the eight directions, the result in every case is unity. Thus 3⁄8 + 1⁄3 + 7⁄24 = 1, 1⁄6 + 1⁄3 + 1⁄2 = 1, and so on throughout the rows, columns, and diagonals.
[I-25]
We are indebted to a friend for the following elaborate Magic Square of fractions, on the lines of that on the preceding page.
1980 | 720 | 140 | 1180 | 14 |
1340 | 18 | 980 | 940 | 1780 |
110 | 780 | 15 | 516 | 310 |
316 | 740 | 2380 | 1140 | 340 |
320 | 2180 | 38 | 120 | 1380 |
The composer claims that there are at least 160 combinations of 5 cells in which these fractions add up to unity, including, of course, the usual rows, columns, and diagonals.
[I-26]
On similar lines to Magic Squares, but as a distinct variety, we give below a specimen of a Magic Oblong.
1 | 10 | 11 | 29 | 28 | 19 | 18 | 16 |
9 | 2 | 30 | 12 | 20 | 27 | 7 | 25 |
24 | 31 | 3 | 21 | 13 | 6 | 26 | 8 |
32 | 23 | 22 | 4 | 5 | 14 | 15 | 17 |
The four rows of this Oblong add up in each case to 132, and its eight columns to 66. Two of its diagonals, from 10 to 5 and from 28 to 23, also total 66, as do the four squares at the right-hand ends of the top and bottom double rows.
[I-27]
Much more complicated than the Magic Square is the Magic Cube.
121 | 27 | 83 | 14 | 70 |
10 | 61 | 117 | 48 | 79 |
44 | 100 | 1 | 57 | 113 |
53 | 109 | 40 | 91 | 22 |
87 | 18 | 74 | 105 | 31 |
2 | 58 | 114 | 45 | 96 |
36 | 92 | 23 | 54 | 110 |
75 | 101 | 32 | 88 | 19 |
84 | 15 | 66 | 122 | 28 |
118 | 49 | 80 | 6 | 62 |
33 | 89 | 20 | 71 | 102 |
67 | 123 | 29 | 85 | 11 |
76 | 7 | 63 | 119 | 50 |
115 | 41 | 97 | 3 | 59 |
24 | 55 | 106 | 37 | 93 |
64 | 120 | 46 | 77 | 8 |
98 | 4 | 60 | 111 | 42 |
107 | 38 | 94 | 25 | 51 |
16 | 72 | 103 | 34 | 90 |
30 | 81 | 12 | 68 | 124 |
95 | 21 | 52 | 108 | 39 |
104 | 35 | 86 | 17 | 73 |
13 | 69 | 125 | 26 | 82 |
47 | 78 | 9 | 65 | 116 |
56 | 112 | 43 | 99 | 5 |
Those who enjoy such feats with figures will find it interesting to work out the many ways in which, when the layers are placed one upon another, and form a cube, the number 315 is obtained by adding together the cell-numbers that lie in lines in the length, breadth, and thickness of the cube.
[I-28]
The Magic Circle below has this particular property:—
32 | ||||||
61 | 94 | |||||
52 | 38 | |||||
191 | 4 | |||||
28 | 193 | |||||
26 | 44 | |||||
98 | 67 | |||||
16 |
The 14 numbers ranged in smaller circles within its circumference are such that the sum of the squares of any adjacent two of them is equal to the sum of the squares of the pair diametrically opposite.
[I-29]
We have had some good specimens of Magic Squares. Here is a very curious and most interesting Magic Circle, in which particular numbers, from 12 to 75 inclusive, are arranged in 8 concentric circular spaces and in 8 radiating lines, with the central 12 common to them all.
62 | 73 | ||||||||||||||||
24 | 15 | ||||||||||||||||
71 | 64 | ||||||||||||||||
17 | 22 | ||||||||||||||||
69 | 66 | ||||||||||||||||
19 | 20 | ||||||||||||||||
60 | 75 | ||||||||||||||||
26 | 13 | ||||||||||||||||
57 | 31 | 48 | 38 | 50 | 36 | 59 | 29 | 12 | 74 | 12 | 67 | 21 | 65 | 23 | 72 | 14 | |
46 | 40 | 55 | 33 | 53 | 35 | 44 | 42 | 16 | 27 | 68 | 18 | 70 | 16 | 63 | 25 | ||
45 | 58 | ||||||||||||||||
43 | 28 | ||||||||||||||||
52 | 51 | ||||||||||||||||
34 | 37 | ||||||||||||||||
54 | 49 | ||||||||||||||||
32 | 39 | ||||||||||||||||
47 | 56 | ||||||||||||||||
41 | 30 |
The sum of all the numbers in any of the concentric circular spaces, with the 12, is 360, which is the number of degrees in a circle.
The sum of the numbers in each radiating line with the 12, is also 360.
The sum of the numbers in the upper or lower half of any of the circular spaces, with half of 12, is 180, the degrees of a semi-circle.
The sum of any outer or inner four of the numbers on the radiating lines, with the half of 12, is also 180.
[I-30]
In the following triangle, if two couples of the figures on opposite sides are transposed, the sums of the sides become equal, and also the sums of the squares of the numbers that lie along the sides. Which are the figures that must be transposed?
5 | ||||||
4 | 6 | |||||
3 | 7 | |||||
2 | 1 | 9 | 0 |
[I-31]
Here is a nest of concentric triangles. Can you arrange the first 18 numbers at their angles, and at the centres of their sides, so that they count 19, 38, or 57 in many ways, down, across, or along some angles?
This curiosity is found in an old document of the Mathematical Society of Spitalfields, dated 1717.
[I-32]
The numbers outside these twin triangles give the sum of the squares of the four figures of the adjacent sides:—
7 | ||||||
2 | 3 | |||||
135 | 99 | |||||
9 | 5 | |||||
1 | 8 | 6 | 4 | |||
117 | ||||||
* | ||||||
137 | ||||||
6 | 4 | 2 | 9 | |||
5 | 1 | |||||
119 | 155 | |||||
7 | 8 | |||||
3 |
The twins are also closely allied on these points:—
18 is the common difference of 99, 117, 135, and of 119, 137, 155.
19 is the sum of each side of the upper triangle.
20 is the common difference of any two sums of squares symmetrically placed, both being on a line through the central spot.
21 is the sum of each side of the lower triangle.
10 is the sum of any two figures in the two triangles that correspond.
254 is the sum of 135, 119, of 117, 137, and of 90, 155.
By transposing in each triangle the figures joined by dotted lines, the nine digits run in natural sequence.
[I-33]
We have dealt with Magic Squares, Circles, and Triangles. Here is a Magic Hexagon, or a nest of Hexagons, in which the numbers from 1 to 73 are arranged about the common centre 37.
1 | 5 | 6 | 70 | 60 | 59 | 58 | ||||||||||||||||||
63 | 8 | |||||||||||||||||||||||
62 | 19 | 53 | 46 | 22 | 45 | 9 | ||||||||||||||||||
61 | 20 | 24 | 64 | |||||||||||||||||||||
2 | 48 | 31 | 42 | 38 | 49 | 57 | ||||||||||||||||||
3 | 47 | 39 | 40 | 44 | 56 | |||||||||||||||||||
67 | 51 | 41 | 37 | 33 | 23 | 7 | ||||||||||||||||||
66 | 50 | 34 | 35 | 54 | 11 | |||||||||||||||||||
65 | 25 | 36 | 32 | 43 | 26 | 12 | ||||||||||||||||||
10 | 30 | 27 | 13 | |||||||||||||||||||||
17 | 29 | 21 | 28 | 52 | 55 | 72 | ||||||||||||||||||
18 | 71 | |||||||||||||||||||||||
16 | 69 | 68 | 4 | 14 | 15 | 73 |
Each of these Hexagons always gives the same sum, when counted along the six sides, or along the six diameters which join its corners, or along the six which are at right angles to its sides. These sums are 259, 185, and 111.
[I-34]
Inscribe six equilateral triangles in a circle, as shown in this diagram, so as to form a regular hexagon.
Now place the nine digits round the sides of each of the triangles, so that their sum on each side may be 20, and so that, while there are no two triangles exactly alike in arrangement, the squares of the sums on the other sides may be alternately equal.
[I-35]
There are 33 different combinations of four of the numbers in the cells of this magic cross which total up in each case to 26.
1 | 12 | ||
9 | 8 | 5 | 4 |
2 | 7 | 6 | 11 |
10 | 3 |
Those who care to work them out on separate crosses will find that there is a very regular correspondence in the positions which the numbers occupy.
[I-36]
Here is quite a charming little puzzle, which is by no means easy of accomplishment:—
✦ | ✦ | ✦ |
✦ | ✦ | ✦ |
✦ | ✦ | ✦ |
Start from one of these nine dots, and without taking the pen from the paper draw four straight lines which pass through them all. Each line, after the first, must start where the preceding one ends.
[I-37]
Place on a chess or draught-board three white men on the squares marked a, and three black men on the squares marked b.
a | a | a | b | b | b |
The pieces marked a can only move one square at a time, from left to right, and those marked b one square at a time, from right to left, on to unoccupied squares; and any piece can leap over one of the other colour, on to an unoccupied square. What is the least number of moves in which the positions of the white and the black men can be reversed, so that each square now occupied by a white is occupied by a black, and each now occupied by a black holds a white piece?
[I-38]
In the upper row of this diagram four white and four black counters are placed alternately.
It is possible, by moving these counters two at a time, to arrange them in four moves as they stand on the lower row. Can you do this? Draughtsmen are handy for solving this puzzle, on a paper ruled as above.
[I-39]
Take five wooden matches, and bend each of them into a V. Place them together, as is shown in the diagram, so that they take the form of an asterisk, or a ten-pointed star.
Lay them on some smooth surface, and without touching them transform them into a star with five points.
[I-40]
It is possible, with plenty of patience, to build up a whole set of dominoes, so that they are safely supported on only two stones set up on end.
This, which might well seem impossible, is done by placing, as a foundation, dominoes in the positions indicated by dotted lines. The arch is then carefully constructed, as shown in the diagram, and for the finish the four stones between the two foundation arches are drawn out, and placed in pairs on end above, and finally, with the utmost care, the other four are drawn away, and built in on the top. Thus the stones indicated by the dotted lines at the base take their place within the dotted lines above.
[I-41]
This diagram represents a shallow box, on the bottom of which twelve counters or draughtsmen are lying loose.
How can they be readjusted so that they will wedge themselves together, and against the side of the box, and it can be turned upside down without displacing them?
[I-42]
The diagram below is an exact reproduction of an old-fashioned maze, cut in the ground near Nottingham. It is eighteen yards square, and the black line represents the pathway, which is 535 feet in length.
The point of this convoluted path is not so much to puzzle people, as to show how much ground may be covered without diverging far from a centre, or going over the same ground twice. As we advance along the line there are no obstructions, and we find ourselves, after passing over the whole of it, on the spot whence we set out.
[I-43]
Start at A, and trace these figures with one continuous line, finishing at B.
You must not take your pencil from the paper, or go over any line twice.
[I-44]
Those who have not seen it will find some real fun in the following little experiment. Fix three matches as shown in the diagram, light the cross match in the middle, and watch to see which of the ends will first catch fire, or what will happen.
[I-45]
Equal volumes of alcohol and water, when mixed, occupy less space than when separate, to the extent indicated in this picture:
If the sum of the volume of the two separate liquids is 100, the volume of the mixture will be only 94. It is thought that the molecules of the two liquids accommodate themselves to each other, so as to reduce the pores and diminish the volume of the mixture.
[I-46]
The simplest and cheapest of all microscopes can easily be made at home. The only materials needed are a thin slip of glass, on to which one or two short paper tubes, coated with black sealing wax, are cemented with the wax, a small stick, and a tumbler half full of water.
Water is dropped gradually by aid of the stick into the cells, until lenses are formed of the desired convexity, and objects held below the glass will be more or less magnified.
[I-47]
For this curious experiment a glass bottle or decanter about half full of water and a sound stalk of straw are needed.
Bend the straw without breaking it, and put it, as is shown, into the bottle, which can then be lifted steadily and safely by the straw, if it is a sound one.
A Russian nobleman had three sons. Rab, the eldest, became a lawyer, his brother Mary was a soldier, and the youngest was sent to sea. What was his name?
[I-48]
The button in a clear glass bottle, as is shown below, hangs attached by a thread to the cork, which is securely sealed at the top.
How can you sever the thread so that the button falls to the bottom without uncorking or breaking the bottle?
[I-49]
Here is a pretty trick which requires an empty bottle, a lucifer match, and a small coin.
Break the wooden match almost in half, and place it and the coin in the position shown above. Now consider how you can cause the coin to drop into the bottle, if no one touches it, or the match, or the bottle.
[I-50]
Our belief that two portions of matter cannot occupy the same space at the same time is almost shaken by the following experiment:
If we introduce slowly some fine powdered sugar into a tumblerful of warm water a considerable quantity may be dissolved in the water without increasing its bulk.
It is thought that the atoms of the water are so disposed as to receive the sugar between them, as a scuttle filled with coal might accommodate a quantity of sand.
[I-51]
Set a stool, as is shown in the diagram below, about nine or ten inches from the wall.
Clasp it firmly by its two side edges, plant your feet well away from it, and rest your head against the wall. Now lift the stool, and then try, without moving your feet, to recover an upright position.
It will be as impossible as it is to stand on one leg while the foot of that leg rests sideways against a wall or door.
[I-52]
Place a set of billiard balls as is shown in the diagram, the spot ball overhanging a corner pocket, and the red and the plain white in a straight line with it, leaving an eighth of an inch between the balls.
How can you pot the spot white with the plain white, using a cue, and without touching, or in any way disturbing, the red ball? There is not room to pass on either side between the red ball and the cushion.
[I-53]
Prepare a circular band of stiff paper, as is shown in the diagram, and balance it, with a coin on the top, on the lip of a bottle.
How can you most effectively transfer the coin into the bottle?
[I-54]
Place a strip of thin board, or a long wide flat ruler, on the edge of a table, so that it just balances itself, and spread over it an ordinary newspaper, as is shown in the illustration.
You may now hit it quite hard with your doubled fist, or with a stick, and the newspaper will hold it down, and remain as firmly in its place as if it were glued to the table over it. You are more likely to break the stick with which you strike than to displace the strip of wood or the paper. Try the experiment.
[I-55]
Here is an after-dinner balancing trick, which it is well to practise with something less brittle than the best glass:—
It will be seen that the blades of the knives are so cunningly interlaced as to form quite a firm support.
[I-56]
Here is a pretty little experiment, which shows the effect of liquids of different densities.
Drop an egg into a glass vessel half full of water, it sinks to the bottom. Drop it into strong brine, it floats. Introduce the brine through a long funnel at the bottom of the pure water, and the water and the egg will be lifted, so that the egg floats between the water and the brine in equilibrium. The egg is denser than the water, and the brine is denser than the egg.
[I-57]
Here is a very simple and effective little trick. Offer to balance an egg on its end on the lip of a glass bottle.
The picture shows how it is done, with the aid of a cork and a couple of silver forks.
(From “La Science Amusante”).
[I-58]
The boy in this picture is blowing hard against the bottle, which is between his mouth and the candle flame.
What will happen?
[I-59]
Here is a simple way to make a needle float on water:—
Fill a wineglass or tumbler with water, and on this lay quite flat a cigarette paper; place a needle gently on this, and presently the paper will sink, and the needle will float on the water.
[I-60]
Here is a pile of ten draughtsmen—one black among nine white.
If I take another draughtsman, and with a strong pull of my finger send it spinning against the column, what will happen?
[I-61]
How long would it take to divide completely a 2 ft. block of ice by means of a piece of wire on which a weight of 5 lb. hangs?
[I-62]
When weak cords of equal strength are attached to opposite parts of a wooden or metal ball which is suspended by one of them, a sharp, sudden pull will snap the lower cord before the movement has time to affect the ball; but a gentle, steady pull will cause the upper cord to snap, as it supports the weight below it.
[I-63]
Hold a pair of dice, and a cup for casting them, in one hand as is shown in the diagram.
Now, holding the cup fast, throw up one of the dice and catch it in the cup. How can you best be sure of catching the other also in the cup?
Here is a metrical Enigma, which appeals with particular force to all married folk, and to our cousins in America:
[I-64]
Build up seven dominoes into a double arch, as is shown in the diagram below, and place a single domino in the position indicated.
Now put the fore-finger carefully through the lower archway, and give this domino quite a smart tip up by pressing on its corner. What will happen if this is done cleverly? Try it.
[I-65]
Place three pennies in contact in a line as is shown below, so that a “head” is between two “tails.”
Can you introduce the coin with a shaded surface between the other two in a straight line, without touching one of these two, and without moving the other?
[I-66]
Place ten coins in a circle, as is shown in this diagram, so that on all of them the king’s head is uppermost.
Now start from any coin you choose, calling it 1, the next 2, and so on, and turn the fourth, so that the tail is uppermost. Start again on any king’s head, and again turn the fourth, and continue to do this until all but one are turned.
Coins already turned are reckoned in the counting, but the count of “four” must fall on an unturned coin.
Can you find a plan for turning all the coins but one in this way without ever failing to count four upon a fresh spot, and to start on an unturned coin?
[I-67]
The diagram below shows how, using one hand only, and grasping a bottle of wine by its body, the contents can be poured out without cutting or boring the cork, or altogether removing it from the bottle.
[I-68]
A sharply-pointed knife with a heavy handle is stuck very lightly into the lintel of a door, and the nut that is to be cracked is placed under it, so that when the knife is released by a touch the nut is cracked.
What simple and certain plan can you suggest for making sure that the knife shall hit the nut exactly in the middle without fail?
[I-69]
If we throw an ordinary wine cork into a tub of water it will naturally float on its side. It is, however, possible to arrange a group of seven such corks, without fastening them in any way, so that they will float in upright positions.
Place them together, as is shown in the illustration, and, holding them firmly, dip them under the water till they are well wetted. Then, keeping them exactly upright, leave go quietly, and they will float in a compact bunch if they are brought slowly to the surface.
[I-70]
As an exercise of patience and dexterity, try to balance a set of dominoes upon one that stands upon its narrow end:—
This is no easy matter, but a little patience will enable us to arrange the stones in layers, which can with care be lifted into place and balanced there.
[I-71]
We expect to puzzle our readers completely by this diagram:—
It is simply the enlargement by photography of part of a familiar picture.
[I-72]
Place a strip of smooth paper on a table so that it overhangs the side, as is shown in the diagram. Stand a new penny steadily on edge upon the paper.
Take hold of the paper firmly, and give it a smart, steady pull. If this is properly done it will leave the penny standing unmoved in its place.
[I-73]
Two men, standing on the bank of a broad stream, across which they could not cast their fishing lines, could not agree as to its width. A bet on the point was offered and accepted, and the question was presently decided for them by an ingenious friend who came along, without any particular appliances for measurement.
He stood on the edge of the bank, steadied his chin with one hand, and with the other tilted his cap till its peak just cut the top of the opposite bank.
Then, turning round, he stood exactly where the peak cut the level ground behind him, and, by stepping to that spot, was able to measure a distance equal to the width of the stream.
[I-74]
Paste or pin together the ends of a long strip of stiff paper so as to form a hoop, and place on the table a board resting at one end upon a book. Challenge those in your company to make the hoop run up the board without any impulse.
They must of course fail, but you can succeed by secretly fastening with beeswax a small stone or piece of metal inside the hoop, as is indicated in the diagram.
[I-75]
This double crescent, called the Seal of Mahomet, from a legend that the prophet was wont to describe it on the ground with one stroke of his scimitar, is to be made by one continuous stroke of pen or pencil, without going twice over any part of it.
[I-76]
Arrange 15 matches thus—
Remove 6 and what number will be left?
Can you discover ten fruits in these lines?
[I-77]
[I-78]
By the following ingenious arrangement of the stones a set of dominoes appears to be unduly rich in doublets:—
It will be noticed that the charm of this arrangement is that the whole figure contains a double set of quartettes, on which the pips are similar.
[I-79]
This again shows how the stones can be placed so that an ordinary set of dominoes seems to be unduly rich in doublets.
We know how, by the addition of a single letter, our cares can be softened into a caress; but in the following Enigma a still more contradictory result follows, without the addition or alteration of a letter, by a mere separation of syllables:—
[I-80]
Here are two more perfect arrangements of a set of dominoes in quartettes, so that the pips and blanks are similarly grouped and repeated:—
[I-81]
Arrange twelve dominoes as is shown in this diagram, and start counting in French from the double five, thus u, n, un; remove the stone you thus reach, which has one pip upon it, and start afresh with the next stone, d, e, u, x, deux; this brings you to the stone with two pips; then t, r, o, i, s, trois, brings you to that with three, and so on until douze brings you to twelve.
Always remove the stone as you hit upon each consecutive number.
Now who can re-arrange these same stones so that a similar result works out in English, thus—o, n, e, one (remove the stone), t, w, o, two, and so on throughout?
[I-82]
In this diagram the word EACH is formed by the use of a complete set of stones, placing every letter in proper domino sequence.
There are also the same number of pips in each letter. Can you construct another English word under the same conditions? As a hint, the word that we have in mind is plural.
This amusing Charade is from the pen of a wise and witty Irish Bishop:—
[I-83]
This very beautiful specimen of a knight’s tour on the chess-board takes its name from the figure formed by the tracery at its centre.
An endless number of symmetrical patterns of varied design can be formed, by a knight’s consecutive moves, with patience and ingenuity.
[I-84]
Here is a pretty and very regular specimen of a knight’s tour on the chess board.
It is one of many variations which produce in the tracery a central star.
[I-85]
Here is a remarkably symmetrical specimen of a knight’s tour on the chess board.
It takes its name from the central archway, which this arrangement forms.
[I-86]
In No. LXXXIV we gave a pretty illustration of a knight’s tour, with a central star.
Here is a good course which shows in its symmetrical tracery a pair of stars.
[I-87]
Among the countless fanciful variations of the knight’s tour that are possible, some have been so designed that more than a merely symmetrical pattern is involved.
Here is, for example, an excellent suggestion of the sails of a windmill with their central fittings.
[I-88]
Here is a very distinctive specimen of the knight’s tour, in which the design reminds us of the old-fashioned lazy-tongs, which stretched out and then back, by opening or shutting their handles on finger and thumb.
[I-89]
This beautiful symmetrical knight’s tour involves in its accomplishment a pretty problem in arithmetic:—
If we follow the course of the knight step by step, and number consecutively the squares on which it rests at each move, we find that there is a constant difference of 32 between the numbers on any two of these squares that correspond in position on opposite sides of the central line.
[I-90]
This short symmetrical knight’s tour can be tested on a corner of the chessboard:—
The knight can start from any square, and, taking the course indicated, return on the twentieth move to the starting point.
[I-91]
A dishonest jeweller, who had a cross of pearls to repair for a lady of title, on which nine pearls could be counted from the top, or from either of the side ends to the bottom, kept back two of the pearls, and yet contrived to return the cross re-set so that nine pearls could still be counted in each direction, as at first. How was this done?
[I-92]
[I-93]
[I-94]
[I-95]
[I-96]
[I-97]
[I-98]
[I-99]
[I-100]
[I-101]
[I-102]
[I-103]
Can you fit a word of two syllables to this Charade?
[I-104]
Woman is my end, was my beginning, and you will find her in my midst.
Why not?
If a tailor and a goose are on the top of the Monument, which is the quickest way for the tailor to get down?
My first is almost all, so is my second, and also my whole?
Why may a barrister’s fees be said to be cheap?
[I-105]
Peter Portman was so proud of his small feet that a wag started the following riddle: “Why are Portman’s feet larger than any others in his club?”
Why is a raven like a writing desk?
What do they do with peaches in California?
What is the utmost effort ever made by a piebald horse at a high jump?
What are the differences between a gardener, a billiard-marker, a precise man, and a verger?
Which can see most, a man with two eyes, or a man with one?
[I-106]
When you do not know the time, and “ask a policeman” what o’clock it is, why are you like the Viceroy of India?
What is the question to which “yes” is the only possible reply?
What is that which will go up a pipe down, but will not go down a pipe up; or will go down a pipe down, but not up a pipe up, and yet when it has gone up a pipe or down a pipe, will go up or down?
Why was London for many years a wonderful place for carrying sound?
Why is a motor-car like swimming fish?
Who can decipher this?
1/6d. me a bloater.
Why is a moth flying round a candle like a garden-gate?
If I caught a newt why would it be a small one?
How can a lawyer’s fee be paid with only a threepenny piece?
When does the cannon ball?
[I-107]
Why should children go to bed soon after tea?
Which may weigh the most, Scotsmen or Irishmen?
Why cannot we have our hair cut?
Divide a hundred and fifty by half of ten, add two-thirds of ten, and so you will find a town.
The following riddle is from the pen and fertile brain of Archbishop Whately, who, it is said, offered in vain £50 for its solution:—
If Moses was the son of Pharaoh’s daughter, who was the daughter of Pharaoh’s son?
I am a word of three syllables, and in all my fulness I represent woman. Rob me of five letters and I am a man. Take away but four, I am woman again. Remove only three, and I resume my manhood. What am I?
A cyclist on a night journey punctures his tyre, and finds that he has forgotten his outfit for repairs. After wheeling the disabled machine uphill for about two miles he registers a vow. What is it?
[I-108]
Why were Younghusband’s pack-horses in Thibet like up-to-date motor cars?
Why is a telescope like a miser?
If I were in the sun, and you were out of it, what would it be?
What is the chief and most natural thing for politicians to desire to do when for the time they are out in the cold, awaiting a change of Government?
I am long lasting, beginning at my end, ending with no beginning, and my end and my beginning between them will bring you to an end.
45. How far can a rabbit run into a square wood, with sides that each measure a mile, if it keeps on a straight course and does not break cover?
[I-109]
I received my first because I was rash enough to say my second to my third, when seeking re-election at my whole.
“Ask me another,” she said, when he pressed her to name the happy day. “I will,” he replied. “Why is the letter ‘d’ like the answer which I seek from you?”
[I-110]
52. Here is a riddle for which Tom Hood was responsible. Can you solve it?
Hold up your hand and you will see what you never have seen, never can see, and never will see. What is this?
Can you tell the difference between the Emperor of Russia and an ill-shod beggar?
Why did Eden Philpotts?
We have heard much of man’s imagined connection with the monkey, through some missing link. What evidence can we gather from early records of, at any rate, some verbal kinship with the patient ass?
My first is gold, my second is silver, my third is copper, and my whole is tin.
What is highest when its head is off?
What word is there of six letters which can be so read that it claims to be spelt with only one?
If a good oyster is a native, what is a bad one?
Why is John Bright?
If I walk into a room full of people, and place a new penny upon the table in full view of the company, what does the coin do?
[I-111]
Jones, who had made it, and put it into his waistcoat pocket, lost it. Brown picked it up, and lighted his cigar with it. Then they both went to the train in it, and ran all the way.
Why cannot a deaf and dumb man tickle nine people?
When did “London” begin with an l and end with an e?
I sent my second to my first, but many a whole passed before he came back to me.
Which weighs most, the new moon or the full moon?
Here is a puzzle which is unique and most remarkable, and which seems to be impossible, though it is absolutely sound:—
There is an English word of more than two letters, of which “la” is the middle, is the beginning, and is the end, though there is but one “a” and one “l” in the word. What is it?
Why is a bee like a rook?
O
B e D
If a monkey is placed before a cross, why does it at once get to the top?
[I-112]
The answer has been defined as “two heads and an application.”
73. How can the Latin exhortation “Macte!” which may be roughly rendered “Go on and prosper!” be applied at cricket to a batsman at a critical moment?
74. Are you good at topography? If so, can you discover and locate, from this description of its surroundings, a town within 30 miles of London?
Half an inch before the trees, and half a foot and half a yard after them, lead us to an English town.
We know how, by the addition of a single letter, our cares can be softened into a caress; but in the following enigma a still more contradictory result follows, without the addition or alteration of a letter, by a mere separation of syllables:—
What two letters describe in nine letters the position of one who has been left alone in his extremity?
“Oh! would I were a man,” cried a schoolmistress, “that I might always teach boys.”
We boys overheard her, and placed her with us. What did we thus turn her into?
How can you make a Maltese cross with less than twelve unbent and unbroken matches?
Have we any reason to suppose that in very early times there were less vowels than we have now?
As Susette was sitting in the cool shadow of an olive grove at Mentone, Henri came up and said to her, with his best bow, “Je sais que vous n’avez pas mon premier, mais que vous êtes mon second, et je vous donnerai mon tout!” What did he hold out to her?
On a church close to an old ruined priory, near Lewes, there is a weathercock in the shape of a fish, probably an emblem of the faith. What moral lesson does this relic of early days convey to us?
[I-114]
“For the want of water we drank water, and if we had had water we should have drank wine.”
Who can have said this, and what did they mean?
Shade of Sir Walter! What does all this mean?
[I-115]
1. Can you prove, by what we may call crazy logic, that madman is equal to madam?
2. A rat with its teeth in the webbed feet of its prey was what the squirrel saw one summer’s day, when he ran down from the tree-tops for a cool drink in the pond below his nest. Can you find out from this the name of the water-plant that was floating in the shade?
[I-116]
3. He set down the answer to that sum at random.
By bold policy Prussia became a leading power.
A great taste for mosaic has arisen lately.
The glad news was swiftly borne over England.
At dusk, year after year, the old man rambled home.
The children cried, hearing such dismal tales.
In each of these lines the name of an island is buried.
4. We could hide a light royal boat with a man or two; the skipper, though, came to a bad end.
In this short sentence seven geographical names are buried, formed by consecutive letters, which are parts always of more than one word. Can you dig them out?
5. What can you make of this? The letters are jumbled, but the words are in due order.
[I-117]
9. How would you punctuate the following sentence?
Maud like the pretty girl that she was went for a walk in the meadows.
Only eight different letters are used in the construction of this verse:—
Wishing to break this record, we have put together a rhyming verse of similar length, in which only five letters are used. They are these:
[I-118]
(18 times) eeeeeeeeeeeeeeeeee.
(20 times) nnnnnnnnnnnnnnnnnnnn.
(18 times) tttttttttttttttttt.
(16 times) iiiiiiiiiiiiiiii.
(15 times) sssssssssssssss.
If is is not is and is not is is what is it is not is and what is it is is not if is not is is? Can you punctuate this so that it has meaning?
Passing one day by train through a station I caught sight of two words upon a large advertisement, which seemed cut out for puzzle purposes; and before long I had framed the following riddle:
Bisect my first, transpose its first half, and between this and its second half insert what remains if you take my second from my first. The result is as good to eat as my first and second are to drink.
It is difficult at first sight to grasp the meaning of this apparently simple sentence:—“Time flies you cannot they pass at such irregular intervals.” How does it read?
In Queen Victoria’s Jubilee year I went to the South Kensington Museum. As I entered, looking at my watch, I thought of the good Queen. After some hours of quiet enjoyment I came away, again looking at my watch, and was reminded that the Prince Consort was not alive to share the Jubilee joys. At what time, and for how long was I in the Museum?
[I-119]
CCC SAW
AMANS TAM ERAT
HI DESINT HERO
AD DIGITO UT MANDO
What is the interpretation?
Does the following statement imply that there is a curative virtue in rose-coloured rays?
To what objection was this diet open?
These thirty-six letters form an English sentence:—
SAR BAB SAR BAB SAR BAB
SAR BAB SAR BAB SAR ARA
What can it be?
[I-120]
“Igineyvartydreevriswutts.”
Can you interpret this sentence, spoken by a sturdy farmer in the corn market?
Try to find a rhyme to Chrysanthemum.
Did you hear that pathetic tale of the three eggs?
Doun tooth ers
A sy
Ouw ould bed
One by.
HERE LIE
How many does the —— represent?
A superstitious couple in the country who heard mysterious noises at night in their house, sought the advice of a “wise woman” in the neighbourhood. She gave them on paper the following charm, which would, she assured them, counteract their evil star, and solve the mystery:—
ground
turn evil star.
What was its significance?
[I-121]
A barber placed prominently in his window the following notice:—
Attracted by this, a man went into the shop, and was shaved, but instead of receiving any liquid refreshment, he was surprised by a demand for the usual payment.
What was the barber’s explanation?
GENUI NE JAM
A
ICARUM.
This label, said to have been found among the ruins of old Rome, seems to bear a very early reference to the birth of Icarus, the flying man; or perhaps to some flying machine named after him, but not yet perfected. Can this be so?
[I-122]
Some of us may perhaps remember Titania’s promise to Bottom in A Midsummer Night’s Dream:
Here is a little puzzle so fresh and curious that it will tempt the fancy of those who find it added to our hoard:
Form a square with four matches. Outside this, at an equal distance all round, form another square with twelve matches, just so far away that the space between them cannot be spanned by a match. With two matches only, form a firm bridge from the outer to the inner square.
[I-123]
The telephone-bell roused Mrs P.W. from her after-luncheon nap, and her husband’s voice came to her ears, from his office in the city:—“I am bringing home to dinner my father’s brother-in-law, my brother’s father-in-law, my father-in-law’s brother, and my brother-in-law’s father.”
“Right!” she replied, knowing his quaint ways, “I shall be prepared.” For how many guests did she provide?
“Give me as much money as I have in my hand,” said Will Slimly to the landlord of a country inn, “and I will spend sixpence with you.” This was done, and repeated twice with the cash that was still in hand, and then the traveller was penniless. How much had he at first, and how much did the landlord contribute to Will’s refreshment?
How can four triangles of equal size be formed with six similar matches?
“Take this half-crown,” said the vicar at a village festival, “and divide it equally between those two fathers and their two sons, but give nothing of less value than a penny to either of them.”
The schoolboy, who was a sharp lad, changed the half-crown, and divided it equally among them. How was this possible?
Tom (yawning) to Nell—“I wish we could play lawn-tennis!”
Nell (annoyed).—“Odioso ni mus rem. Moto ima os illud nam?”
Can you make head or tail, in Latin or in English, of her reply?
Two policemen stood behind a hedge, watching for motor-car scorchers. One looked up the road, the other looked down it, so as to command both directions.
“Bill,” said one, without turning his head, “what are you smiling at?” How could he tell that his mate was smiling?
[I-125]
That that is is that that is not is not is not that it it is.
What is this?
ALLO.
An English Proverb
ieaoaaaeaai
| | | | | | | | | | | | |
Add thirteen more strokes, and make—what?
Can a coroner, after signing his name, write his official position in more ways than one?
Here is a good and simple card trick. Ask anyone to choose three cards from a pack, and to place them face downwards on the table. Then, beginning to count with the number of pips[I-126] on each card laid down, let him place other cards upon these, one heap at a time, until in every case he counts up to 15, adding mentally 1 as he places down each card.
When he has completed the three heaps, take from him the remaining cards, and count them. Their number, less 4, will always be the number of pips on the three chosen cards. An ace counts 11, and a court card 10.
Thus, if he has chosen a 7, a 10, and an ace (11), he must cap these with 8, 5, and 4 cards respectively. There will then be 32 cards left, and 32 - 4 = 28, which is the sum of 7, 10, and 11.
Now for a few words about an old friend, familiar to most of us. If a monkey sits on a post holding one end of a string, and continually moves to face a man who holds the other end, and who walks round the post, does that man walk round the monkey?
R. A. Proctor, the astronomer, treated the question thus, some years ago in Knowledge:—“In what way does going round a thing imply seeing every side of it? Suppose a man shut his eyes, would that make any difference? Or suppose the man stood still, and the monkey turned round, so as to show the man its front and back, would the stationary man have gone round the monkey?”
We commend this ancient and puzzling subject of controversy to our readers. Our own opinion is that the man does walk round the monkey, in the commonly accepted meaning of the words, but “who shall decide when doctors disagree?”
[I-127]
Here are a few cleverly buried animals:
“Come hither, mine friend,” said the monk, eyeing him kindly, “be a very good boy, step through the furze bravely, and seek the lost riches.”
Ermine; monkey; beaver; zebra; ostrich.
We, as electricians, proclaim the electric motor cab a boon to London.
Weasel; baboon.
When it was reported that M. de Lesseps and his son were to marry sisters, the Rappel suggested these possible complications. Lesseps the younger will be his father’s brother-in-law, and his wife will be her own sister’s sister-in-law.
If Lesseps the elder has a son, and Lesseps the younger has a daughter, and these marry, then the daughter of Lesseps the younger will be her father’s sister-in-law, and the son of Lesseps the elder will be the son-in-law of his brother. The son of the second marriage will have two grandfathers, Lesseps the elder and the younger, so that old Lesseps will become his own son’s brother.
[I-128]
Latin
English
We most of us know the good old double-barrelled riddle, “Why need we never starve in the desert?” “Because of the sand which is there.” “How did the sandwiches get there?” “Ham settled there, and his descendants bred and mustered.” This clever metrical solution is by Archbishop Whately:—
[I-129]
We know that Latin motto, with its clever double meaning, suggested for a retired tobacconist, “Quid rides”—why do you smile?—or quid rides. Here is another, proposed many years ago, for a doctor of indifferent repute:—
[I-130]
The importance of proper punctuation is very happily illustrated by the following lines:—
There is a curiously constructed inscription over the door of the cloister of the Convent of the Carmelites at Caen, which runs thus:—
D | di | Si | scap | ac | ab as | ||||||
um | vus | mon | ulare | cepit | tris. | ||||||
T | sæ | Dæ | ul | in | in an |
The lines are in honour of one Simon Stock of that order, and they may be freely rendered:—
W | ho | Si | first beg | pr | |||||
hen | ly | mon | an his | eaching. | |||||
T | wi | De | howled to sc | t |
[I-131]
Edgar A. Poe addressed the following puzzle-valentine to a lady, adding, “You will not read the riddle, though you do the best you can do:”—
The first letter of the first line, the second of the second, the third of the third, and so on spell the lady’s name—Frances.
A curious optical illusion is illustrated by printing a row of ordinary capital letters and figures which are symmetrical, thus:—
SSSSSXXXXX3333388888
If we glance at them casually it does not strike us that their upper parts are smaller than the lower, but if we turn the paper upside down we are at once surprised to see how marked the difference really is.
(According to the daily Press, a good old-fashioned kiss lately lost favour in some quarters.)
We must not fail to register these two Questions Well Answered, which it is hard to match for excellence:—
Q.—Why did the fly fly?
A.—Because the spider spied her!
And
Q.—Why did the lobster blush?
A.—Because it saw the salad dressing!
The following puzzling lines were the outburst of the wanton wit of a lover, in his effort to play off one lady against another, and so retain two strings to his bow:—
Charles Lamb was responsible for the following ingenious perversion of words, when the Whig associates of the Prince Regent were sore at not obtaining office:—
We may assume that this was the germ of the riddle “What is the difference between the Prince of Wales, a bald-headed man, and a monkey?” One is the heir-apparent, the second has no hair apparent, and the third is a hairy parent.
Can the conjunction “and” be used otherwise than as a connecting link?
Yes, as in the puzzle sentence, “It was and I said not or,” which, if no comma is placed after “said,” no one can read easily at sight.
The tragedy “William Tell” was to be played many years ago at the old Drury Lane Theatre, and an actor, familiarly known as Will, asked[I-134] the exponent of the part of Tell, on the eve of its production, whether he thought the play would tell with the critics and the public.
The following question and answer passed between them, in which only two different words were used, in an intelligible sequence of twenty-five words:—
Will.—“The question has arisen Tell, ‘will Will Tell tell?’ Will Tell tell Will ‘will Will Tell tell?’”
Tell.—“Tell will tell Will ‘will Will Tell tell?’ ‘Will Tell will tell!’”
Many of our readers will enjoy this very clever rendering of a well-known Limerick:—
To be repeated six times rapidly and articulately.
Darkness that may be felt.
[I-135]
The following cryptic notice was posted recently on the green baize notice-board of a West-End Club:—
For some time its message was a mystery, until the sharp eyes of a member deciphered in what seemed to be real Latin, and was made up of Latin words, this English sentence, appropriate to the place:—“One can go in a billiard or pyramid contest at a pot or a cannon. Side is put on at times, or a rest used.”
A QUESTION
THE REPLY
[I-136]
A man fond of his joke, and speaking of Lenten fare to a friend in a letter, wrote:—
leaving it to his ingenuity to complete the broken line. The reply was a clever solution to the puzzle:—
The following simple calculation will be amusing to children:—If an even number of coins or sweets are held in one hand, and an odd number in the other, let the holder multiply those in the right hand by 2, and those in the left hand by 3, and add together the two results. If this is an even quantity the coins or sweets in the right hand are even, and in the left odd; if it is odd the contrary is the case.
(To be read or said rapidly.)
[I-137]
Porson wrote a Latin epigram on a Fellow of one of the Colleges who always pronounced the a of Euphrates short. This was wittily translated thus:—
All the letters of the alphabet are used in these lines, which have such an easy flow:—
A French mother, as she gives to her child a cup of tea to allay its cough, says:—
“Ton thé t’a-t-il oté ta toux?”
(Thy tea, has it removed thy cough?)
This sentence, repeated rapidly, is warranted to tire the nimblest tongue.
[I-138]
Dick and Harry meet in a dim hotel passage:—
Dick.—Did you hear that story about No. 288?
Harry (all ears).—No; what was it?
Dick.—Oh, it’s too gross, too gross entirely!
Harry.—Tell away. I’ll try to stand it.
Dick.—Well; 288 is two gross, isn’t it?
Byron in his “Bride of Abydos” is responsible for the following strangely inconsequent echo:—
A well-conducted echo would assuredly have seconded the cry of Despair by repeating the final syllables “my child!”
[I-139]
Here is a modern specimen of Macaronic verse:—
Which reads into English thus:—
LATIN
Puris agem, suetis a sylva bella vi olet indue mos is pura sueta far, amar vel verre ex que sit.
ENGLISH READING
Pure is a gem, sweet is a silver bell, a violet in dewy moss is purer, sweeter far, a marvel very exquisite.
These quaint lines were once addressed to a very tall barrister, named Long, when he was briefless:—
Thomas Moore, the poet, is responsible for the following rude riddle, and its reply:—
[I-140]
Why is a pump like Viscount Castlereagh?
Mrs Biggar had a baby. Which was the bigger? The baby was a little Biggar!
Which was the bigger, Mr Biggar or the baby? Mr Biggar was father Biggar!
Mr Biggar died; was the baby then bigger than Mrs Biggar? No, for the baby was fatherless!
Place the sixteen court cards from an ordinary pack in the form of a square, so arranged that no row, no column, and neither of the diagonals shall contain more than one card of each suit, and one of each rank.
As the solution presents no difficulty, but merely calls for patience and attention, we will leave it to the ingenuity of our readers.
A Scottish tradesman had made, as he supposed, about £4,000, but his old clerk produced a balance-sheet which plainly showed £6,000 to his credit. It came upon the old gentleman as quite a disappointing shock when presently the puzzle was solved by the discovery that in the addition the year of Our Lord had been taken into account!
[I-141]
The following ingenious play upon words dates from the days when a promise was made that the Thames pollution should cease in five years:—
“Mr Smith presents his compliments to Mr Brown, and I have got a hat that is not his, and he has got a hat that is not yours, so no doubt they are the expectant ones!”
This play upon words appeared many years ago in the pages of Punch, and is worth preserving:—
“Si six scies scient six cigares, six cent six scies scient six cent six cigares.”
To be said trippingly without a trip.
If 6 saws cut 6 cigars, 606 saws cut 606 cigars.
Here is a good illustration of the nonsense that may easily result from the misuse of punctuation:—
[I-142]
“Yes,” said an Eton captain of the boats to his uncle, the admiral, “I can quite believe that the British Jack Tar takes his name from that Latin verb, which is so suggestive of a life on the ocean wave, jactari, to be tossed about.”
A bishop of Sodor and Man found himself entered in the visitor’s book of a French hotel as “L’évêque du siphon et de l’homme!”
Nicholas, 1828.
[I-143]
Why is a lame dog like a blotting-pad?
A lame dog is a slow pup.
A slope up is an inclined plane.
An ink-lined plane is a blotting-pad!
It is difficult to imagine that the very incarnation of what is wild and forbidding is buried in those words of peace and promise, “On Christmas Eve you rang out Angel peals,” until we find in them the consecutive letters “ourangoutang!”
How many apples were eaten by Adam and Eve? We know that Eve 81, and that Adam 812, total 893. But Adam 8142 please his wife, and Eve 81242 please Adam, total 89,384. Then again Eve 814240 fy herself, and Adam 8124240 fy himself, total 8,938,480!
[I-144]
Quite unconscious that he was burying a cat in his melodious lines Moore wrote:—
“Sesquipedalia verba,” words a foot and a half long, were condemned by Horace in his “Ars Poetica.” Had he known English, what would he have said of “smiles,” a word so long that there is a mile between its first and last letters?
A Swiss lad asked me, as I stopped quite breathless on an Alpine height, “Do you prefer ‘monter’ to ‘descendre?’” I declared a preference for downhill, but he most convincingly replied, “I prefer ‘mon thé’ to ‘des cendres!’” (my tea to cinders).
[I-145]
An angry street arab, who seems to have caught the infection of our letter puzzles, was heard recently to call out to a gutter-snipe, “You are a fifty-one ar!” (LIAR.)
Why may you pick an artist’s pocket?—Because he has pictures.
What is the solace for a mind deprest?—Deep rest.
Here are all the elements of a rat hunt, expressed in Latin words:—“Sit stillabit,” sed amanto hiscat, “sta redde, sum misi feror arat trito unda minus, solet me terna ferret in micat.” They read into English, if differently pointed, thus:—Sit still a bit, said a man to his cat, stay ready, some mice I fear, or a rat try to undermine us, so let me turn a ferret in, my cat.
[I-146]
It is said that at first Adam thought Eve angelical, but there came a time when they both took to vestments.
If a man says that he forgets what he does not wish to remember, does he mean to say that he does not remember what it is that he wishes to forget; or that he is able to forget that which he does not wish to remember?
Marwood!
Cricket. | Lawn Tennis. | Football. |
---|---|---|
Lords | Ladies | Legs |
Stumps | Jumps | Bumps. |
Pax in bello.
The dogs of war.
What is the French for teetotaler?—Thé tout à l’heure!
[I-147]
Varietas pro Rege.
Change for a sovereign!
“Splendide mendax.”
Lying in State.
When Dunlop, in playful mood, said that no one could make a good pun on his name, a smart bystander at once exclaimed, “Lop off the end, and the thing is done!”
Mitte meos super omnes ad candam aut esse homines mortui.
The Dog Latin may be rendered thus: “Send my overalls to the tailor to be mended.”
Some printer’s devil must have been at work when the proof-reader found “The Legend of the Cid,” set up in type as “The leg end of the Kid!”
[I-148]
The perfect Magic Square, for which we have given the construction of two preparatory squares, is formed by placing one of these over the other, so that the numbers in their corresponding cells combine, as is shown below.
* | ||||
1 | 3 | 5 | 2 | 4 |
5 | 2 | 4 | 1 | 3 |
4 | 1 | 3 | 5 | 2 |
3 | 5 | 2 | 4 | 1 |
2 | 4 | 1 | 3 | 5 |
* | ||||
5 | 15 | 0 | 10 | 20 |
10 | 20 | 5 | 15 | 0 |
15 | 0 | 10 | 20 | 5 |
20 | 5 | 15 | 0 | 10 |
0 | 10 | 20 | 5 | 15 |
6 | 18 | 5 | 12 | 24 |
15 | 22 | 9 | 16 | 3 |
19 | 1 | 13 | 25 | 7 |
23 | 10 | 17 | 4 | 11 |
2 | 14 | 21 | 8 | 20 |
No less than 57,600 Magic Squares can be formed with twenty-five cells by varying the arrangement of these same figures, but not many are so perfect as our specimen, in which sixty-five[I-149] can be counted in forty-two ways. These comprise each horizontal row; each perpendicular row; main diagonals; blended diagonals from every corner (such as 6, with 14, 17, 25, 3; or 15, 18, with 21, 4, 7); centre with any four equidistant in outer cells; any perfect St George’s cross (such as 18, 22, 1, 15, 9); and any perfect St Andrew’s cross (such as 6, 22, 13, 5, 19).
Here is the solution of the ingenious Magic Square of 100 cells with 36 cells unfilled. The rows, columns, and diagonals all add up to 505.
91 | 2 | 3 | 97 | 6 | 95 | 94 | 8 | 9 | 100 |
20 | 82 | 83 | 17 | 16 | 15 | 14 | 88 | 89 | 81 |
21 | 72 | 73 | 74 | 25 | 26 | 27 | 78 | 79 | 30 |
60 | 39 | 38 | 64 | 66 | 65 | 67 | 33 | 32 | 41 |
50 | 49 | 48 | 57 | 55 | 56 | 54 | 43 | 42 | 51 |
61 | 59 | 58 | 47 | 45 | 46 | 44 | 53 | 52 | 40 |
31 | 69 | 68 | 34 | 35 | 36 | 37 | 63 | 62 | 70 |
80 | 22 | 23 | 24 | 75 | 76 | 77 | 28 | 29 | 71 |
90 | 12 | 13 | 87 | 86 | 85 | 84 | 18 | 19 | 11 |
1 | 99 | 98 | 4 | 96 | 5 | 7 | 93 | 92 | 10 |
Notice that the top and bottom rows contain all the numbers from 1 to 10 and from 91 to 100; the two rows next to these range from 11 to 20 and from 81 to 90; the two next from 21 to 30 and from 71 to 80; the two next from 31 to 39 and 60 to 70, excluding 61, but including 41; and the two central rows the numbers run from 42 to 59, with 40 and 61.
[I-150]
The following diagram shows how the twin Magic Squares are evolved from our diagram:—
1 | 5 | 6 | 2 | 3 | 7 | |
2 | 6 | 7 | 3 | 4 | 8 | |
3 | 7 | 8 | 4 | 5 | 9 | |
The sums of the corresponding rows in each square are now equal, and the sums of the squares of the corresponding cells of these rows are equal. The sums of the four diagonals are also equal, and the sum of the squares of the cells in corresponding diagonals are equal. The sum of any two numbers symmetrically placed with respect to the connecting link between the 7 and the 3 is always 10.
The figures to be transposed in triangle A are 9 and 3 and 7 and 1.
5 | ||||||
4 | 6 | |||||
3 | 7 | |||||
2 | 1 | 9 | 8 |
5 | ||||||
4 | 6 | |||||
9 | 1 | |||||
2 | 7 | 3 | 8 |
Then in triangle B, the sum of the side is in each case 20, and the sums of the squares of the numbers along the sides is in each case 126.
[I-151]
The subjoined diagram shows the order in which the first 18 numbers can be arranged so that they count 19, 38, or 57 in many ways, down, across, or along some angles, 19 in 6 ways, 38 in 12, and 57 in 14 ways.
Thus, for examples—
7 | + | 12 | = | 14 | + | 5 | = | 4 | + | 15 | = | 19 |
7 | + | 11 | + | 14 | + | 6 | ——— | = | 38 | |||
7 | + | 14 | + | 4 | + | 5 | + | 12 | + | 15 | = | 57 |
The figures in the Magic Hexagon must be arranged as is shown in this diagram:—
[I-152]
126 | ||||||||||||||||||
5 | 2 | 7 | 3 | 8 | 5 | |||||||||||||
8 | 2 | 4 | 6 | 3 | 7 | |||||||||||||
114 | 114 | |||||||||||||||||
4 | 6 | 9 | 1 | 8 | 2 | |||||||||||||
3 | 1 | 9 | 7 | 5 | 4 | 1 | 9 | 6 | ||||||||||
1 | 3 | 7 | 9 | 8 | 6 | 7 | 3 | 4 | ||||||||||
8 | 2 | 3 | 9 | 1 | 9 | |||||||||||||
126 | 126 | |||||||||||||||||
6 | 4 | 4 | 1 | 8 | 2 | |||||||||||||
5 | 5 | 6 | 7 | 2 | 5 | |||||||||||||
114 |
It will be seen that the sum of the four digits on each side of each triangle is twenty, and that, while their arrangements vary, the total of the added squares of the numbers on the alternate sides of the hexagon are equal.
✦ | ✦ | ✦ |
✦ | ✦ | ✦ |
✦ | ✦ | ✦ |
To pass through these nine dots with four continuous straight lines, start at the top right-hand[I-153] corner, and draw a line along the top of the square and beyond its limits, until its end is in line with the central dots of the side and base. Draw the second line through these, continuing it until its end is below and in line with the right-hand side of the square; draw the third line up to the starting-point, and the fourth as a diagonal, which completes the course.
On a chess or draught-board three white men are placed on squares marked a and three black men on squares marked b in the diagram—
a | a | a | b | b | b | |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
Every a can move from left to right one square at a time, and every b from right to left, and any piece can leap over one of another colour on to an unoccupied square. They can reverse their positions thus:—
If we number the cells or squares consecutively, and notice that at starting the vacant cell is No. 4, then in the successive moves the vacant cells will be 3, 5, 6, 4, 2, 1, 3, 5, 7, 6, 4, 2, 3, 5, 4. Of the moves thus indicated six are simple, and nine are leaps.
The counters are changed in four moves only, moving two at a time as follows:—
[I-154]
Move | 2 and 3 | to | 9 and 10. |
„ | 5 and 6 | to | 2 and 3. |
„ | 8 and 9 | to | 5 and 6. |
„ | 1 and 2 | to | 8 and 9. |
To change the ten-pointed star of wooden matches into one of five points without touching it, let a little water fall into the very centre, as it lies on quite a smooth surface, and in a few moments, under the action of the water, it will gradually assume the shape shown in the second diagram, of a five-pointed star.
This is a very simple and effective after-dinner trick. Small matches move best.
[I-155]
The twelve counters or draughtsmen lying loosely at the bottom of a shallow box can be arranged so that they wedge themselves together and against the side thus:—
Temporary centre
Place one for the moment in the centre, and six round it. Hold these firmly in their places with the left hand, and fix the other five round them, as is shown in the diagram. Then remove the temporary centre, and fill in with it the vacant place. All will then be in firm contact, and the box may be turned upside down without displacing them.
[I-156]
This diagram, shows how a continuous course is possible without taking pencil from paper, or going twice over any line.
We have purposely left spaces wide enough to make the solution perfectly clear.
The diagram below shows how the thread within the bottle is severed so that the button[I-157] falls, without uncorking the bottle or breaking it.
Nothing is needed but a lens to focus the rays of the sun, which pass through the glass without heating it, and burn the thread.
In order to cause the coin to fall into the bottle without touching coin, match, or bottle, let a drop or two of water fall upon the bent middle of the match.
Very soon, under the action of the water, the two ends of the match will open out so that the coin which was resting on them falls between them into the bottle.
[I-158]
The diagram we give below shows the ingenious trick by which the plain white, if struck gently with a cue, will, aided by the tumbler, pot the spot white ball without in any way disturbing the red.
The balls to start with are an eighth of an inch apart, and there is not room for a ball to pass between the cushions and the red. Place the tumbler close to spot white.
[I-159]
The most effective way to transfer the coin from the top of the circular band of paper into the bottle is to strike a smart blow with a cane, or any small stick, on the inside of the paper band. There is not time for the coin to be influenced in the same direction, and it falls plumb into the neck of the bottle.
When the boy shown in this picture blows hard at the bottle which is between his mouth and the candle flame, the divided air current[I-160] flows round the bottle, reunites, and extinguishes the flame.
If, by a strong pull of my finger, I launch the draughtsman that is on the edge of the table against the column of ten in front of it, the black man, which is just at the height to receive the full force of the blow, will be knocked clean out of its place, while the others will not fall. This is another illustration of the vis inertiæ.
[I-161]
A block of ice would never be divided completely by a loop of wire on which hangs a 5 ℔ weight. For as the wire works its way through, the slit closes up by refreezing, and the weight falls to the ground with the wire, leaving the ice still in a single block.
It is quite easy to throw the upper of this pair of dice into the air and catch it in the cup, but the other is more elusive. As you throw it upward with sufficient force you will also throw[I-162] the die that has been already caught out of the cup.
The secret of success lies in dropping the hand and cup rapidly downwards, quitting hold at the same moment of the die, which then falls quietly into the cup held to receive it.
When the single domino shown in the diagram in front of the double archway, is quite smartly tipped up by the forefinger carefully inserted through the lower arch, the stone which lies flat below another is knocked clean out, while[I-163] none of the other stones fall, another practical illustration of vis inertiæ.
For this very curious trick, club dominoes, thick and large, should be used. Some patience and experience is needed, but success at last is certain.
You will be able to place the shaded coin between the other two in a straight line without touching one of these, and without moving the other, if you place a finger firmly on the king’s head and then move the shaded coin an inch or[I-164] two to the right, and flick it back against the coin you hold. The other “tail” coin will then spring away far enough to allow the space that is required.
After reaching and turning the coin which you first call “four,” miss three coins, and begin then a fresh set of four; repeat this process to the end.
Hold a cup of water so that it will wet the handle of the knife, then remove it, and place the nut exactly on the spot where the drop of water falls from the handle.
The photographic enlargement is simply a much magnified reproduction of Mr Chamberlain’s eye and eyeglass, exactly as they appear in the picture which we give below, taken from[I-165] its negative. A strong condensing lens will reproduce the original effect, which can also be obtained by holding the enlargement at a distance.
[I-166]
This double crescent may be drawn by one continuous line, without passing twice over any part, by starting at A, passing along the curve AGD, from D along DEB, from B along BFC, and from C along CEA.
If fifteen matches are arranged thus—
and six are removed, ten is the number that remains, thus—
or one hundred may remain, thus:—
[I-167]
This diagram shows the arrangement in which seventeen trees can be planted in twenty-eight rows, three trees in each row:—
Here is an arrangement of dominoes which enables us to count out the first twelve numbers, one after the other, by their spelling:—
Start with the double five, and, touching each stone in turn, say o, n, e, one; remove the stone with one pip, and go on, t, w, o, two; remove[I-168] the two, and say t, h, r, e, e, three, and so on till you reach at last the twelve.
Playing cards can be used, counting knave, queen, as eleven, twelve. It makes quite a good trick if you place the cards face downwards in the proper order, and then, saying that you will call up each number in turn, move the cards one at a time to the other end, spelling out each number as before, either aloud or not, and turning up and throwing out each as you hit upon it. If you do not call the letters aloud it adds to the mystery if you are blindfolded.
This is the other combination of stones and their pips which fulfils the conditions, and forms the word AGES.
In both cases a complete set of stones is used, which are arranged in proper domino sequence, and everyone of the eight letters carries exactly forty-two pips.
[I-169]
The dishonest jeweller reset the pearls in a cross so that its arms were a stage higher up. It will be seen that by this arrangement nine pearls can still be counted in each direction.
1. Self-assassin, a neddy. Saw an ass in an eddy!
2. To get her: Together.
3. A candle.
4. Liquorice.
5. A book.
6. One solver proposes raven, croaking before a storm; once an object of worship; seldom seen; forbidden in Leviticus as food; alone with Noah when its mate was sent forth; weighing about 3 lbs; the name of a small South Carolina island, having as its first and last letters R and N; the Royal Navy.
Another finds in K the key, as that letter with no ar is alone in ark. With much ingenuity he shows that the last line calls for a second letter,[I-170] and that the letters K and G can be traced throughout almost all Hallam’s “lights;” Kilogram being nearly 3 lbs., and Knot a mile; while either K.G. (Knight of the Garter) or King would fit the final line.
7. The lines become “rank treason” if the corresponding lines of the two stanzas are read together, thus:—
and so on throughout.
8. A pair of skates.
9. A shadow.
10. A chair.
11. The changes that are rung are one, eno, Noe, neo, eon, on, none.
12. Cares, caress.
13. Echo.
14. Strike.
15. A pair of spurs.
16. A.D.A.M.; Adam; a dam; Adam; a damson; a dam.
17. The CID, the Castilian hero whose fame was at its height in the middle of the eleventh century.
18. A sigh.
19. Coxcomb.
20. Jack and Jill.
21. A man’s felt hat.
22. Measurable.
23. Chair, char, arch.
24. Sala (G.A.S.), which reversed is alas.
25. Page, (p)age.
26. C (sea), A (hay), T (tea).
27. A BROKEN TALE
28. Yesterday. Most excludes Adam, and ter is half of terror.
[I-171]
29. Donkey.
30. Mental, lament, mantle.
31. His heels.
32. Tares, tears, a rest.
33. Connecticut.
34. Grate, rate, rat, ate.
35. Mary, in fanciful mood, on her thirty-sixth birthday, decorated her pincushion thus—XXXVI.
36. Opinionist.
37. Violin (LVII + on).
38. Trout (tr—out).
39. Post—stop.
40. A pair of scissors in a case.
41. Dog.
42. Mainland.
43. Changed.
44. The name of the Russian nobleman’s third son, the boy who went to sea, was Yvan. As the name of the eldest, Rab, who became a lawyer, was Bar reversed, and that of the soldier son Mary was Army as an anagram, so Yvan’s name resolves itself into Navy, his profession.
45. VIVID.
46. Nothing.
47. London.
48. Rock, cork.
49. Place, lace, ace, lac.
50. a, e, i, o, u, y.
51. The solution of the enigma which begins:—
is the number of letters of the alphabet used in spelling a number. Thus twice six, or twelve, is composed of six letters, and so on.
52. A button.
53. LEVEL—MADAM.
54. An egg.
55. Vague.
56.
57. Highway.
58. A set of false teeth.
59. The “fearful fate” enigma is slaughter; cut off its head and we have laughter; lop off its shoulders and we find aught.
60. Speculation—peculations.
61. The word “united” is “of fellowship the token,” and the requirement “reverse it, and the bond is broken” refers only to the two central letters. When this is reversed the word “untied” is formed.
62. Average.
63. German—manger.
64. Corkscrew.
65. Tar is transformed by Art, and as a sailor is fond of port, and blisters in the sun. When it turns to run it becomes Rat, and when it doubles it is Tartar, and is caught.
66.
67. A widower who has lost two wives.
68. The grape-vine on the Marquis of Breadalbane’s estate, Killin, N.B., which bears more than 5000 bunches of grapes, of which only 500, properly thinned out, are allowed to mature, so that the fewer and smaller bunches bear finer fruit.
69. Poe, poet, poetry.
70. Theatres. The articles the and a lead on to the other four letters tres, and these form the word rest, if the t is transferred to the end.
71. Scold, cold, old.
72. Justice, (just—ice).
73. A shadow.
74. VI., IV., I.
[I-173]
75. The letter I.
76. The letter V.
77. An army.
78. A rich table; chair, table; charitable.
79. High-low.
80. Orange, pear, date, banana, peach, plum, lime, lemon, mango, apple.
81. Innuendo.
82. Snipe, of which pines is an exact anagram.
83.
is solved by nowhere, now here.
1. Good-night (knight).
2. Grandson.
3. Oyster.
4. Stay-lace.
5. Ann—ounce.
6. VOID, OVID.
7. Disconsolate (disc—on—so—late).
8. Ginger—Nigger. (G.E.R. Great Eastern Railway).
9. Honesty (hone, below the razor).
10. Nutmeg.
11. Waterloo.
12. Whether (whet—her).
13. Mendicant (mend I can’t).
14. Campbell.
15. Foxglove.
16. Anglesea.
17. Shewed.
18. Sparrow, often a gutter percher!
19. Dishonest (dish—one—st).
20. Dogmatism.
21. Anthem.
22. Gigantic (gig—antic).
23. Toad (ad is Latin for to).
24. Cineraria (sinner—area).
25. Ignis—fatuus, or Will-o’-the-wisp (ignis, fire—fatuus, a fool).
[I-174]
26. Isis (sis in Latin, thou mayest be).
27. Capacity.
28. Scarcity.
29. Pardon.
30. Humbug.
31. Ramrod.
32. Dumpling.
33. Into.
34. Herring.
35. Dublin (bud—nil).
36. Peerless.
37. Beatrice.
38. Beam—be is half of the word verb, am is half of same, and be and am are similar in sense.
39. Pulpit.
40. Spare—rib.
41. Usher.
42. The ship Carmania.
43. Candid.
44. Husbandman.
45. Hamlet.
46. Handcuff.
47. Sinecure.
48. Infancy.
49. Teachest.
50. Hippodrome.
51. Invalid.
52. Woman.
53. Kensington.
54. Benjamin.
55. Stipendiary.
56. Wonder.
57. Cabin.
58. Falstaff.
59. Periwinkle.
60. Nameless.
61. Fourscore.
62. Hatred.
63. Catsup.
64. Molestation.
65. Omen.
66. Isinglass.
67. Muffin.
68. Footman.
69. Sparrow-grass.
70. Matchless.
71. Planted.
72. Toast-rack.
73. Half-and-half, if properly punctuated.
1. Washerwoman.
2.
3. Pluck the goose.
4. Also.
[I-175]
5. A lawsuit.
6. Because they are bargains.
7. A pair of shoes.
8. Because whenever he goes out he can put his portmanteaux (Portman toes) into his boots.
9. FIVE.
10. Rail—liar.
11. Because it slopes with a flap!
12. In California they eat all the peaches they can, and can all they can’t!
13. The utmost effort ever made by a piebald (or by any) horse at a high jump is four feet from the ground!
14. Insatiate (in—sat—I—ate).
The clever couplet—
was intended to point out that the enigma
was understood, and to frame at the same time a fresh one of similar sort.
15. A gardener minds his peas, a billiard-marker his cues, a precise man his p’s and q’s, and a verger his keys and pews.
16. A man with one eye can see more than a man with two, for in addition to all else he can see the other man’s two eyes, which can only see his one.
17. When you ask a policeman what o’clock it is, you are like the Viceroy of India, because you are as king for the time.
18. “What does Y E S spell?” is the question to which “yes” is the only possible reply.
19. An umbrella.
20. London for many years was a wonderful place for sound, for you could laugh at 5 p.m. at Waterloo Junction, and by walking briskly across[I-176] the river be in time for the late Echo at Charing Cross.
21. Because it may be smelt!
22. The full reading of “1s. 6d. me a bloater” is “Bob Tanner sent me a bloater.”
Note.—If any solver should ask, “But where is the ‘sent’?” we reply, “The scent was in the bloater!”
23. The solution of the prime conundrum “Why is a moth flying round a candle like a garden gate?” is—Because if it keeps on it singes its wings (its hinges it swings).
24. (Twe)lve—twe(nty) = twenty.
25. Because it would be my newt (minute).
26. The steps by which, in paying my debt to a lawyer, a threepenny piece swells to the needed six and eightpence are these:—
27. When the Vickers Maxim (vicar smacks him).
28. Children should go to bed soon after tea because when “t” is taken away night is nigh.
29. Scottish may be lighter than Irish men, for while Irishmen may be men of Cork, Scotsmen may be men of Ayr.
30. Because barbers do not cut hair any longer!
31. Colenso.
32. This is Archbishop Whately’s riddle, and a solution, suggested long after his offer of £50 had expired:—
33. If Moses was the son of Pharaoh’s daughter, he was the daughter of Pharaoh’s son.
34. The word of three syllables which represents woman or man alternately by three contractions is heroine—hero—her—he.
35. Solution to-morrow!
36. Wholesome.
37. They were jolly well tired!
38. The stocks.
39. Because it makes a far—thing present.
40. If I were in the sun, and you were out of it, it would be a sin.
41. COLD.
42. Take off—ice.
43. Enduring.
44. Uncross the “t” of “a foot,” and it becomes “a fool.”
45. A rabbit can run into a square wood with sides that each measures a mile, keeping always in a straight line, until it reaches the middle of the wood, when it must begin to run out of it!
46. To-morrow.
47. Scar—bo—rough.
48.
49. A wig.
50. Because we cannot be wed without it.
51. A spit.
52. Wit (double you—I—tea).
53. Holding up your hand you will see what you never have seen, never can see, and never will see—namely, the little finger as long as the finger next to it!
54. The Emperor of Russia issues manifestoes.[I-178] An ill-shod beggar manifests toes without his shoes!
55. To show Walsham How a good bishop is made.
56. There was certainly a tribe of Man—asses.
57. L. s. d.
58. A pillow.
59. Abused (a—b—used).
60. A settler.
61. Because John Burns.
62. It looks round!
63. A minute.
64. A deaf and dumb man cannot tickle nine persons, because he can only gesticulate (just tickle eight!).
65. London always began with an l, and end always began with an e!
66. Season.
67. The new moon, for the full moon is much lighter.
68. Island (la is the middle, is is the beginning, and is the end!).
69. Because! (bee caws).
70. The reading of the Dark Rebus
O
B e D
is—a little blackie in bed with nothing over him.
71. If a monkey is placed before a cross it at once gets to the top, for APE is then APEX.
72. The answer to this riddle, defined as “two heads and an application,” is a kiss.
73. The Latin expression of encouragement “macte” may be applied in its English equivalent in-crease to a batsman when an umpire says of him “not out” after a risky run.
74. The place which answers to the description “Half an inch (ch) before the trees (elms), half[I-179] a foot (fo), and half a yard (rd) after them leads us to an English town,” is Chelmsford.
75. The subject of the riddle, which none can locate, is nowhere. Cut asunder almost in the middle, it breaks into the opposite extreme, and becomes now here!
76. The two letters which in nine letters describe the position of one who has been left alone in his extremity are a b and one d. Abandoned.
77. Usher (us—her).
78. You can make a Maltese cross with less than twelve unbent and unbroken matches, by striking only one match and dropping it down his back. If the first fails, try another!
79. We may suppose that there were less vowels than we have now in the early days of Noe, when u and i were not there.
80. An orange (or—ange).
81. The moral taught to us by the old emblem of a weathercock in the shape of a fish on a church near Lewes is, “It is vain to aspire!”
82. FIDDLE.
83. The words “for the want of water we drank water, and if we had had water we should have drank wine,” were spoken by the crew of a vessel that could not cross the harbour bar for want of water, and who had no wine on board.
84.
is solved by O.
85. Money.
86. Had I been in Stanley’s place when Marmion cried “On, Stanley, on!” the resulting word on-i-on would have made the Scottish fray seem more like Irish stew.
87. The figure O.
[I-180]
88.
is solved by A Queen Bee. The Bee is made up of the letter b, in Greek called beta, and two little es.
89. Its.
90. Inch—chin.
1. CRAZY LOGIC
Can you prove that madman = madam is solved thus:—
A madman is a man beside himself. Therefore a madman = two men.
Madam is a woman. Woman is double you O man (w-o-man). Therefore madam = two men.
And as things which are equal to the same are equal to one another, therefore madman = madam.
Q. E. D.
(Quite easily Done.)
2. A BIT OF BOTANY
The water-plant is the Frogbit, which floats and spreads on the surface of ponds and pools.
3. The six islands buried in the lines—
He set down the answer to that sum at random.
By bold policy Prussia became a leading power.
A great taste for mosaic has arisen lately.
The glad news was swiftly borne over England.
At dusk, year after year, the old man rambled home.
The children cried, hearing such dismal tales.
are Sumatra, Cyprus, Formosa, Borneo, Skye, Malta.
4. The seven geographical names “buried” in the sentence, “We could hide a light royal[I-181] boat with a man or two; the skipper, though, came to a bad end,” are Deal, Troy, Witham, Esk, Perth, Baden, Aden.
5. The jumbled letter lines read thus:—
6.
is solved by ANATHEMA (an-a-the-M-a).
7.
is solved by adding n to uniformed—uninformed.
8. The Ruling letters in:—
are B. U. T. (beauty), and Y. Z. (wise head).
9. Many might punctuate the sentence, “Maud like the pretty girl that she was went for a walk in the meadows” by merely putting a full stop at the end of it. But why not make a dash after Maud?
10. The answer by Echo to
is Pack o’ ninnies!
11. The verse in which only five different letters are used is—
[I-182]
12. The catch sentence: “If is is not is and is not is is what is it is not is and what is it is is not if is not is is?” becomes intelligible if it is punctuated thus: If “is” is not “is,” and “is not” is “is,” what is it “is not” is, and what is it “is” is not, if “is not” is “is?”
13. The words on the placard were PALE ALE, and these through the steps described become PA-LE AP-LE, APPLE.
14. The reading of “Time flies you cannot they pass at such irregular intervals,” is as though it ran “You cannot time flies, they pass at such irregular intervals.”
ROYAL MEMORIES
15. I was reminded of Queen Victoria as I entered the South Kensington Museum at five minutes to one, because I noticed that the hands of my watch were so placed as to represent a very perfect V.
When I left the building it was twenty-five minutes and forty-five seconds to six, and then the hands, with the help of the seconds hand which crossed it, formed a very perfect A, and so reminded me of Prince Albert.
16. The solution of
CCC SAW
is “the season was backward.”
[I-183]
17. THE OLD LATIN LEGEND
AMANS TAM ERAT
HI DESINT HERO
AD DIGITO UT MANDO
reads off into excellent English thus:—
“A man’s tame rat hides in the road; dig it out man, do!”
18. The statement “I know that roseate hues preserve” does not imply that there is any curative virtue in rose-coloured rays, but asserts “I know that Rose ate Hugh’s preserve!”
19. The following exception was taken to Dr Fell’s diet for the sick of all sops:—
20. The English dislocated sentence formed by these thirty-six letters:—
SAR BAB SAR BAB SAR BAB
SAR BAB SAR BAB SAR ARA
is, “A bar as a barb bars Barbara’s Barabbas.”
21. The Wiltshire farmer’s sentence—
“Igineyvartydreevriswutts”
when interpreted runs, “I gave him forty-three for his oats.”
22. Here is a tolerable rhyme to Chrysanthemum:—
23. This was, in brief, the pathetic tale of the three eggs—“Two bad!”
[I-184]
24. THE ANCIENT LEGEND
Doun tooth ers
A sy
Ouw ould bed
One by.
reads thus:—“Do unto others as you would be done by.”
25. There were but six persons in the vault which contained two grandmothers and their two grand-daughters; two husbands and their two wives; two fathers and their two daughters; two mothers and their two sons; two maidens and their two mothers; two sisters and their two brothers. Two widows had each one son, and each married the son of the other, and had a daughter by the marriage.
26. The supposed charm—
ground
turn evil star
given by the wise woman to a nervous couple, to counteract their evil star, and account for mysterious noises, is merely “Rats live underground,” turn being a direction to the solver.
27. The word composed of five varied vowels of foreign sound, with but one consonant between them, is oiseau, the French for bird. The three letters which flow in four are eau, water, which flows in the River Oise, and the other trio spell oie, a goose, which is found therein.
28. The Paradox—
is solved by Bone.
[I-185]
29. The barber who had placed in his window the notice—
explained, to the man who expected a free shave and a cool drink, that the interpretation was really this:—“What? Do you think I will shave you for nothing, and give you a drink?”
30. The curious Latin label—
GENUI NE JAM
A
ICARUM.
has no reference to Icarus, or to flying machines. Its proper place was on a cask of “Genuine Jamaica Rum.”
31. The puzzle word is ipecacuanha.
32.
is solved thus:—As each day and night the cat climbed up eleven feet, and came down seven, the daily upward gain was four feet, and thirteen days would bring her fifty-two feet up the tree. Then on the fourteenth day she mounted the remaining eleven feet, and was at the top, so that no coming down seven feet is to be taken into account, and she attains her place in fourteen days.
33.
[I-186]
is solved:—
IX NINE (the two nines.)
IX NINES = 54.
(S is a third of six) S
34. To bridge the moat, or space between the two squares which one match cannot span, place one match across one of the corners of the outer square, and the other from this to the inner square.
35.
is solved by attenuate (at ten-u-Ate, goddess of vengeance).
36. Mrs P.W. had only one guest to provide for. Her husband had invited his father’s brother-in-law, Jones, who was his brother’s father-in-law, because Mr P.W.’s brother had married Jones’ daughter, and his father-in-law’s brother, because he had himself married Jones’ niece, and also his brother-in-law’s father, as Mr P.W.’s sister married Jones’ son.
37. This sharp customer started with fivepence farthing, and gradually extracted from the landlord’s pocket a shilling and three farthings towards the eighteenpence which he spent in refreshments.
38. To form four triangles of equal size with six similar matches, place three of them in a triangle on the table, and hold or balance the other three above these, so as to form the skeleton of a pyramid.
39. The following couplet solves this question:—
[I-187]
40. The lad gave tenpence each to a grandfather, his son, and his grandson.
41. Nell’s reply to Tom, when he said, with a yawn, “I wish we could play lawn-tennis!” “Odioso ni mus rem. Moto ima os illud nam,” was not Latin, but good sound English. Read each word in its order backwards, and you have-- “Oh! so do I in summer. Oh, Tom! am I so dull, I man?”
42. The policeman who was looking up the road for motor-car scorchers was able to see that his mate, who was looking down the road, was smiling, because they stood face to face.
43.
is solved thus:—Two of the three nines are reversed, and then
966 = 16.
44. The trying sentence, “that that is is that that is not is not is not that it it is,” is cleared thus by proper punctuation:—That that is, is; that that is not, is not. Is not that it? It is.
45. A L L O is “Nothing after all.”
46. The proverb with missing consonants is—Give a dog a bad name and hang him.
47. If to the thirteen upright strokes—
| | | | | | | | | | | | |
thirteen more are added, the word HOTTENTOT may be formed.
48. A coroner could, after signing his name, write down his official position with c or one r.
PAGE | |
---|---|
Optical Illusions | II-1 |
Freaks of Figures | II-20 |
Chess Cameos | II-26 |
Science at Play | II-58 |
Curious Calculations | II-114 |
Word and Letter Puzzles | II-147 |
Solutions | II-167 |
[II-1]
Take a small card and place it on its longer edge upon the dotted line. Now set the picture in a good light on the table, and let your head drop gradually towards the card until you almost touch it with your nose. You will see the bird fly into the jaws of the snake!
1. A carpenter was called in to mend a hole in a wooden floor. The gap was two feet wide, and twelve feet long, while the only board at hand was three feet wide, and eight feet long.
This had been put aside as useless, but, on catching sight of it, the carpenter ran his rule over it and said that he could make a perfect fit, and cover all the hole by cutting the board into two pieces. How did he do this?
[II-2]
This most interesting optical illusion was devised by Professor Thompson some years ago:—
If the illustration is moved by hand in a small circle on the level, with such motion as is given in rinsing out a bowl, the circles of the larger diagram will seem to revolve in the direction in which the paper is moved, while the cogs of the smaller diagram will apparently turn slowly in the opposite direction.
[II-3]
Here is another combination of the clever illusion of the whirling wheels.
If a rapid rotating motion is given to the diagram, each circle will seem to revolve, and the cog wheel in the centre will appear to move slowly round in the opposite direction.
2. A man leaves an orchard of forty choice apple trees to his ten sons. On the first tree is one apple, on the second there are two, on the third three, and so on to the fortieth, on which there are forty.
Each son is to have four of the trees, and on them an equal number of the apples. How can they thus apportion the trees, and how many apples will each son have? Here is one way:—
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 |
40 | 39 | 38 | 37 | 36 | 35 | 34 | 33 | 32 | 31 |
82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 |
Can you find another perfect solution?
[II-4]
We call very particular attention to this fascinating illustration of the fact that the mind and eye may receive and register false impressions under quite simple conditions:—
Hold this at rather more than reading distance, upright, and move it steadily up and down. The dark line will soon seem to slide up and down upon the perpendicular line. It will be better seen if drawn to pattern on a card.
[II-5]
As the eye falls upon the principal lines of this interesting diagram, an immediate impression is formed that they are not parallel.
This, however, is a most curious illusion, created in the mind entirely by the short sloping lines, as is found at once by the simple test of measurement.
3. With no knowledge of the surrounding district, I was making my way to a distant town through country roads, guided by the successive sign-posts that were provided.
Coming presently to four cross-roads I found to my dismay that some one had in mischief uprooted the sign-post and thrown it into the ditch. In this perplexing fix how could I find my way? A bright thought struck me. What was it?
4. As I stood on the platform at a quiet country station, an engine, coming along from my left at thirty miles an hour, began to whistle when still a mile away from me. The shrill sound continued until the engine had passed a mile and a half to my right. For how long was I hearing its whistle?
[II-6]
In this curious optical illusion the lines are exactly equal in length.
The eye is misled by the effect which the lines drawn outward and inward at their ends produce upon the mind and sight.
5.
6. Are there any particular days of the week with which no new century can begin?
[II-7]
These straight lines, at right angles to each other, are, though they do not seem to be, exactly equal in length.
This and similar illusions are probably due to the variation of the vague mental standard which we unconsciously employ, and to the fact that the mind cannot form and adhere to a definite scale of measurement.
7. Why has a spliced cricket bat such good driving power? and why is the “follow through” of the head of a golf club so telling in a driving stroke?
8. On my bookshelf in proper order stand two volumes. Each is two inches thick over all, and each cover is an eighth of an inch in thickness. How far would a bookworm have to bore in order to penetrate from the first page of Vol. I. to the last page of Vol. II.?
[II-8]
Can you decide at a glance which of the two lines below the thick band is a continuation of the line above it?
Make up your mind quickly, and then test your decision with a straight edge.
9. From what height must a man fall out of an airship—screaming as he goes overboard—so as to reach the earth before the sound of his cry?
N.B.—Resistance of the air, and the acoustical fact that sound will not travel from a rare to a dense atmosphere, are to be disregarded.
10. Imagine a man on a perfectly smooth table surface of considerable size, in a vacuum, where there is no outside force to move him, and there is no friction. He may raise himself up and down, slide his feet about, double himself up, wave his arms, but his centre of gravity will be always vertically above the same point of the surface.
How could he escape from this predicament, if it was a possible one?
[II-9]
It is difficult, even after measurement, to believe that these figures are of the same size.
But they will stand the test of measurement.
11. A rope passes over a single fixed pulley. A monkey clings to one end of the rope, and on the other end hangs a weight exactly as heavy as the monkey. The monkey presently starts to climb up the rope. Will he succeed?
12. Seeing that the tension on a pair of traces tends as much to pull the horse backward as it does to pull the carriage forward, why do the traces move on at all?
[II-10]
A very curious and interesting form of optical illusion is well illustrated by what may be called “the shifting brick.”
The central brick, drawn to show all its edges, as though it were made of glass, will assume the form indicated by one or other of the smaller bricks at its right and left, according to the way in which the eyes accommodate themselves for the moment to one pattern or to the other. If you do not see this at first, look steadily for awhile at the pattern you desire.
13. Why does a rubber tyre leave a double rut in dust, and a single one in mud?
14. If two cats, on opposite sides of a sharply sloping roof, are on the point of slipping off, which will hold on the longest?
[II-11]
If you place four coins in the positions shown at the top of this diagram, and attempt, or challenge some one to attempt, without any measuring, to move the single coin down in a straight line until the spaces from C to D on either side exactly equal the distance from A to B—
It must drop as far as is shown here, which seems to the unaided eye to be too far.
This excellent illusion can be shown as an after-dinner trick with four napkin-rings.
[II-12]
Here is another excellent optical illusion. Look attentively at the diagram below, and notice in which direction you apparently look into it, as though it were an open cask.
Now shake the paper, or move it slightly, and you will find, more often than not, that you seem to see into it in quite the opposite direction.
15. I hold a penny level between my finger and thumb, and presently let it fall from the thumb by withdrawing my finger. It makes exactly a half-turn in falling through the first foot. If it starts “heads,” how far must it fall to bring it “heads” to the floor?
16. “They call these safety matches,” said Funnyboy at his club one day, “and say that they strike only on the box. Don’t believe it! I can strike them quite easily on my boot.”
No sooner said than done. He took out a match, struck it on his boot, and—phiz!—it was instantly alight. The box was handed round, and match after match was struck by the bystanders on their boots, but not one of them could succeed.
“You don’t give the magic touch,” said Funnyboy, as he gaily struck another. How did he do it?
[II-13]
How many cubes can you see as you look at the large diagram? The two smaller ones should be looked at first alternately, and they will assist the eye to see at one time six, and at another time seven, very distinct cubes.
[II-14]
This curious optical illusion is not easily followed by eye to the finish of the several lines.
Each short line is, in fact, part of the circumference of a circle, and the circles when completed will be found to be accurately concentric. It would seem at first sight that the lines are taking courses which would eventually meet at some point common to them all.
17. We commend this curious point to the special attention of cyclists:—
A bicycle is stationary, with one pedal at its lowest point. If this bicycle is lightly supported, and the bottom pedal is pulled backward, what will happen?
[II-15]
A most remarkable optical illusion is produced by the blending of the dark and light converging rays of this diagram. Stand with your back to the light, hold the page, or better still, the diagram copied on a card, by the lower right-hand corner, give it a continuous revolving movement in either direction, and the visible ghost of a silver coin, sometimes as large as sixpence, sometimes as large as a shilling, will appear! Where can it come from?
18. A merchant has a large pair of scales, but he has lost his weights, and cannot at the moment replace them. A neighbour sends him six rough stones, assuring him that with them he can weigh any number of pounds, from 1 to 364. What did each stone weigh?
[II-16]
Here is a pretty form of our first illusion:—
Place the edge of a card on the dotted line, look down upon it in a good light, and, as you drop your face till it almost touches the card, you will see the goose move towards the sugar in the little maiden’s hand.
19. A wheel is running along a level road, and a small clot of mud is thrown from the hindermost part of the rim. What happens to it? Does it ever renew its acquaintance with the wheel that has thus rejected it?
[II-17]
Here is another method by which an optical illusion of length is very plainly shown:—
Judged by appearances, the line A B in the larger figure is considerably longer than the line A B below it, but tested by measurement they are exactly equal.
20. A village carpenter undertook to make a cupboard door. When he began to put it in its place it was too big, so he took it back to his workshop to alter it. Unfortunately he now cut it too little. What could he do? He determined to cut it again, and it at once became a good fit. How was this done?
[II-18]
Here is another excellent illustration that seeing is not always believing.
No one could suppose at first sight that these four lines are perfectly straight and parallel, but they will stand the test of a straight edge. The divergent rays distract the vision.
21. If from the North Pole you start sailing in a south-westerly direction, and keep a straight course for twenty miles, to what point of the compass must you steer to get back as quickly as possible to the Pole?
[II-19]
The optical illusion in the picture which we reproduce is due to the defective drawing of the two men on the platform. In actual size upon the paper the further man looks much taller than the other.
Measurement, however, shows the figures to be exactly of a height. This illusion is due to the fact that the head of the further man is quite out of perspective. If he is about as tall as the other, and on level ground, both heads should be about on the same line. As drawn, he is, in fact, a monster more than eight feet high.
22. If Dick, who is five feet in height, stands bolt-upright in a swing, the ropes of which are twenty feet long, how much further in round numbers do his feet travel than his head in describing a semi-circle?
[II-20]
Here is an excellent and very simple illustration of a well-known optical curiosity:—
Hold this picture at arm’s length in the right hand, hold the left hand over the left eye, and draw the picture towards you gradually, looking always at the black cross with the right eye. The black disc will presently disappear, and then come into sight again as you continue to advance the paper.
23. Can you name nine countries in Europe of which the initial letters are the same as the finals?
Here is a delightfully simple way in which market gardeners, or others who buy or sell weighty produce, can check their invoices for potatoes or what not.
Say, for example, that a consignment weighs 6 tons, 10 cwts., 1 qr. Then, since 20 cwts. are to a ton as 20s. are to a pound, and each quarter would answer on these lines to 3d., we can at once write down £6 10s. 3d., as the price at £1 the ton. On this sure basis any further calculation is easily made.
[II-21]
Look steadily, in a good light, for thirty seconds at the cross in the eye of the pictured skull; then look up at the wall or ceiling, or look fixedly at a sheet of paper for another thirty seconds, when a ghost-like image of the skull will be developed.
A gardener, when he had planted 100 trees on a line at intervals of 10 yards, was able to walk from the first of these to the last in a few seconds, for they were set on the circumference of a circle!
[II-22]
Here is another example of what is known as the persistence of vision:—
Look fixedly for some little time at this grotesque figure, then turn your eyes to the wall or ceiling, and you will in a few seconds see it appear in dark form upon a light ground.
It needs something more than mere arithmetic to discover that the solution to this puzzle is XLV, the sum of the nine digits, for if the L is removed, XV, the third of XLV, remains.
[II-23]
Here is another curious illusion:—
The four straight lines are perfectly parallel, but the contradictory herring-bones disturb the eye.
If our penny had been current coin in the first year of the Christian era, and had been invested at compound interest at five per cent., it would have amounted in 1905 to more than £132,010,000,000,000,000,000,000,000,000,000,000,000.
This gigantic sum would afford an income of £101,890,000,000,000,000,000 every second to every man, woman, and child in the world, if we take its population to be 1,483,000,000 souls!
Absurdly small in contrast to these startling figures is the modest eight shillings which the same penny would have yielded in the same time at simple interest.
[II-24]
Here in another form is shown the illusion of length.
At first sight it seems that the two upright lines are distinctly longer than the line that slopes, but it is not so.
Here is a neat method of discovering the age of a person older than yourself:—
Subtract your own age from 99. Ask your friend to add this remainder to his age, and then to remove the first figure and add it to the last, telling you the result. This will always be the difference of your ages. Thus, if you are 22, and he is 35, 99 - 22 = 77. Then 35 + 77 = 112. The next process turns this into 13, which, added to your age, gives his age, 35.
[II-25]
In this diagram one hundred and twenty-one circular spots are grouped in a diamond.
If we half close our eyes, and look at this through our eye-lashes, we find that it takes on the appearance of a section of honeycomb, with hexagonal cells.
Here is a ready method for multiplying together any two numbers between 12 and 20.
Take one of the two numbers and add it to the unit digit of the other. Beneath the sum thus obtained, but one place to the right, put the product of the unit digits of the two original numbers.
The sum of these new numbers is the product of the numbers that were chosen. Thus:—
19 × 13. | (19 + 3) | = | 22 |
(9 × 3) | = | 27 | |
247 |
[II-26]
Black has made an illegal move. He must replace this, and move his king as the penalty. White then mates on the move.
Here is a method for determining the total number of balls in a solid pyramid built up on a square base:—
Multiply the number of shot on one side of the base line by 2, add 3, multiply by the number on the base line, add 1, multiply again by the number on the base, and finally divide by 6. Thus, if the base line is 12—
12 × 2 + 3 = 27; 27 × 12 + 1 = 325; 325 × 12 = 3900; and 3900 ÷ 6 = 650, which is the required number.
[1] N.B.—This title does not imply a tragedy.
[II-27]
White might have given mate on the last move. White now to retract his move, and mate at once.
Show by analysis the mating position.
[II-28]
White to play and draw.
“Now, boys,” said Dr Bulbous Roots to class, “you shall have a half-holiday if you prove in a novel way that 10 is an even number.”
Next morning, when the doctor came into school, he found this on the blackboard:—
SIX | = | 6 | |
SIX | = | 9 | |
By subtraction | S | = | -3 |
SEVEN | = | 7 | |
S | = | -3 | |
Therefore | SEVEN | = | 10 |
Q. E. D.
(Quite easily done!)
The half-holiday was won.
[II-29]
White to play, and draw.
[II-30]
White to play, and mate in two moves.
There are twelve variations in this beautiful problem.
It will interest all who study short cuts and contrivances to know that a novice at arithmetic who has mastered simple addition, and can multiply or divide by 2, but by no higher numbers, can, by using all these methods, multiply any two numbers together easily and accurately.
This is how it is done:—
Write down the numbers, say 53 and 21, divide one of them by 2 as often as possible, omitting remainders, and multiply the other by 2 the same number of times; set these down side by side, as in the instance given below, and wherever there is an even number on the division side, strike out the corresponding number on the multiplication side. Add up what remains on that side, and the sum is done. Thus:—
53 | 21) |
26 | (42) |
13 | 84) |
6 | (168) |
3 | 336) |
1 | 672) |
1113) |
which is 53 multiplied by 21.
[II-31]
White to play, and mate in two moves.
[II-32]
White to play, and mate in two moves.
[II-33]
White to play, and mate in two moves.
The following particulars about a very rare property of numbers will be new and interesting to many of our readers:—
The number 6 can only be divided without remainder by 1, 2, and 3, excluding 6 itself. The sum of 1 + 2 + 3 is 6. The only exact divisors of 28 are 1, 2, 4, 7, and 14, and the sum of these is 28; 6 and 28 are therefore known as perfect numbers.
The only other known numbers which fulfil these conditions are 496; 8128; 33,550,336; 8,589,869,056; 137,438,691,328; and 2,305,843,008,139,952,128. This most remarkable rarity of perfect numbers is a symbol of their perfection.
[II-34]
White to play, and mate in two moves. There are no less than twelve variations!
[II-35]
White to play, and mate in two moves.
Somewhat akin to perfect numbers are what are known as amicable numbers, of which there is a still smaller quantity in the realm of numbers.
The number 220 can be divided without remainder only by 1, 2, 4, 5, 10, 11, 22, 44, 55, and 110, and the sum of these divisors is 284. The only divisors of 284 are 1, 2, 4, 71, and 142, and the sum of these is 220.
The only other pairs of numbers which fulfil this curious mutual condition, that the sum of the divisors of each number exactly equals the other number, are 17,296 with 18,416, and 9,363,584 with 9,437,056. No other numbers, at least below ten millions, are in this way “amicable.”
[II-36]
White to play, and mate in two moves.
[II-37]
White to play, and mate in three moves.
1 | × | 9 | + | 2 | = | 11 |
12 | × | 9 | + | 3 | = | 111 |
123 | × | 9 | + | 4 | = | 1111 |
1234 | × | 9 | + | 5 | = | 11111 |
12345 | × | 9 | + | 6 | = | 111111 |
123456 | × | 9 | + | 7 | = | 1111111 |
1234567 | × | 9 | + | 8 | = | 11111111 |
12345678 | × | 9 | + | 9 | = | 111111111 |
[II-38]
White to play, and mate in three moves.
There is a pleasant touch of mystery in the following method of discovering a person’s age:—Ask any such subjects of your curiosity to write down the tens digit of the year of their birth, to multiply this by 5, to add 2 to the product, to multiply this result by 2, and finally to add the units digit of their birth year. Then, taking the paper from them, subtract the sum from 100. This will give you their age in 1896, from which their present age is easily determined.
[II-39]
White to play, and mate in three moves.
As I came in after a day among the birds and rabbits, the keeper asked me—“Well, sir, what sport?” I replied, “36 heads and 100 feet.” It took him some time to calculate that I had accounted for 22 birds and 14 rabbits.
[II-40]
White to play, and mate in three moves.
The nine digits can be arranged to form fractions equivalent to
13 14 15 16 17 18 19
thus:—
582317469 = 13 795631824 = 14 297314865 = 15 294317658 = 16 527436918 = 17 932174568 = 18 836175249 = 19
[II-41]
White to play, and mate in three moves.
[II-42]
White to play, and mate in three moves.
This motor problem will be new and amusing to many readers:—
Let m be the driver of a motor-car, working with velocity v. If a sufficiently high value is given to v, it will ultimately reach pc. In most cases v will then = o. For low values of v, pc may be neglected; but if v be large it will generally be necessary to square pc, after which v will again assume a positive value.
By a well-known elementary theorem, pc + lsd = (pc)2, but the squaring may sometimes be effected by substituting x3 (or × × ×) for lsd. This is preferable, if lsd is small with regard to m. If lsd be made sufficiently large, pc will vanish.
Now if jp be substituted for pc (which may happen if the difference between m and pc be large) the solution of the problem is more difficult. No value of lsd can be found to effect the squaring of jp, for, as is well-known, (jp)2 is an impossible quantity.
[II-43]
White to play, and mate in three moves.
[II-44]
White to play, and mate in three moves.
To divide any sum easily by 99, cut off the two right-hand figures of the dividend and add them to all the others. Set down the result of this in line below, and then repeat this process until no figures remain on the left to be thus dealt with.
Now draw a line down between the tens and hundreds columns, and add all up on the left of it, thus:—
8694 | 32 | 120 | 78 | |||||||
87 | 26 | 1 | 98 | |||||||
1 | 13 | 99 | ||||||||
14 | 121 | and | 99 | over. | ||||||
8782 | and | 14 | over. | In other words, 122. |
The last number on the right of the lines shows always the remainder. If this should appear as 99 (as in the second example above), add one to the number on the left.
[II-45]
White to play, and mate in three moves.
[II-46]
White to play, and mate in three moves.
The question, “How many times can 19 be subtracted from a million?” was set by an examiner, who no doubt expected that the answer would be obtained by dividing a million by 19. One bright youth, however, filled a neatly-written page with repetitions of
1,000,000 | 1,000,000 | 1,000,000 |
19 | 19 | 19 |
999,981 | 999,981 | 999,981 |
and added at the foot of the page, “N.B.—I can do this as often as you like.”
There was a touch of unintended humour in this, for, after all, the boy gave a correct answer to a badly worded question.
[II-47]
White to play, and mate in three moves.
[II-48]
White to play, and mate in three moves.
Here is a very smart and very simple method of dividing any multiple of 9 by 9, from the fertile brain of Lewis Carroll:—Place a cypher over the final figure, subtract the final figure from this, place the result above in the tens place, subtract the original tens figure from this, and so on to the end. Then the top line, excluding the intruded cypher, gives the result desired. Thus:—
36459 ÷ 9 = 4051,0 36459 = 4051.
[II-49]
White to play, and mate in three moves.
1 | × | 8 | + | 1 | = | 9 |
12 | × | 8 | + | 2 | = | 98 |
123 | × | 8 | + | 3 | = | 987 |
1234 | × | 8 | + | 4 | = | 9876 |
12345 | × | 8 | + | 5 | = | 98765 |
123456 | × | 8 | + | 6 | = | 987654 |
1234567 | × | 8 | + | 7 | = | 9876543 |
12345678 | × | 8 | + | 8 | = | 98765432 |
123456789 | × | 8 | + | 9 | = | 987654321 |
[II-50]
White to play, and mate in three moves.
Here is one of the methods by which we can readily discover a number that is thought of. The thought-reader gives these directions to his subject: “Add 1 to three times the number you have thought of; multiply the sum by 3; add to this the number thought of; subtract 3, and tell me the remainder.” This is always ten times the number thought of. Thus, if 6 is thought of—6 × 3 + 1 = 19; 19 × 3 = 57; 57 + 6 - 3 = 60, and 60 ÷ 10 = 6.
[II-51]
White to play, and mate in three moves.
Here is a curious rough rule for remembering distances and sizes:—
The diameter of the earth multiplied by 108 gives approximately the sun’s diameter. The diameter of the sun multiplied by 108 gives the mean distance of the earth from the sun. The diameter of the moon multiplied by 108 gives the mean distance of the moon from the earth.
[II-52]
White to play, and mate in three moves.
[II-53]
White to play, and mate in three moves.
Here is a curious and quite uncommon method of dividing any multiple of 11 by 11.
Set down the multiple of 11, place a cypher under its last figure, draw a line, and subtract, placing the first remainder under the tens place. Subtract this from the next number in order, and so on throughout, adding in always any number that is carried. Thus:—
363 | 56408 | 375034 |
0 | 0 | 0 |
33 | 5128 | 34094 |
[II-54]
White to play, and mate in three moves.
Perhaps the old saying, “there is luck in odd numbers,” may have some connection with the curious fact that the sum of any quantity of consecutive odd numbers, beginning always with 1, is the square of that number. Thus:—
1 + 3 + 5 | = | 9 | = | 3 | × | 3. |
1 + 3 + 5, etc., up to 17 | = | 81 | = | 9 | × | 9. |
1 + 3 + 5, etc., up to 99 | = | 2500 | = | 50 | × | 50. |
[II-55]
White to play, and mate in three moves.
In the number 142857, if the digits which belong to it are in succession transposed from the first place to the end, the result is in each case a multiple of the original number. Thus:—
285714 | = | 142857 | × | 2 |
428571 | = | 142857 | × | 3 |
571428 | = | 142857 | × | 4 |
714285 | = | 142857 | × | 5 |
857142 | = | 142857 | × | 6 |
[II-56]
White to play, and mate in three moves.
By the following simple method, a plausible attempt is made to prove that 1 is equal to 2:—
Suppose that a = b, then
ab | = | a2 | |
∴ | ab - b2 | = | a2 - b2 |
∴ | b(a - b) | = | (a + b)(a - b) |
∴ b | = | a + b | |
∴ b | = | 2b | |
∴ 1 | = | 2 |
This process only proves in reality that 0 × 1 = 0 × 2, which is true.
[II-57]
White to play, and mate in four moves.
Few people know a very singular but simple method of calculating rapidly how much any given number of pence a day amounts to in a year. The rule is this:—Set down the given number of pence as pounds; under this place its half, and under that the result of the number of original pence multiplied always by five. Take, for example, 7d a day:—
£7 | 0 | 0 |
3 | 10 | 0 |
2 | 11 | |
£10 | 12 | 11 |
The reason for this is evident as soon as we remember that the 365 days of a year may be split up into 240, 120, and 5, and that 240 happens to be the number of pence in a pound.
[II-58]
A small wheel with ten teeth is geared into a large fixed wheel which has forty teeth. This small wheel, with an arrow mark on its highest cog, is revolved completely round the large wheel. How often during its course is the arrow pointing directly upwards? Here is a diagram of the starting position.
[II-59]
Here is a most curious and interesting question:—When an engine is drawing a train at full speed from York to London, what part of the train at any given moment is moving towards York?
At any time, when the engine is drawing a train at full speed from York to London, that part of the flange of each wheel which is for the moment at its lowest is actually moving backwards towards York.
For any point, such as A, on the circumference of the tyre, describes in running along a series of curves, as shown by full lines in the diagram; and any point, B, on the outer edge of the flange, follows a path shown by the dotted curves.
If these lines are followed round with a pencil in the direction of the arrows, it will be found that the point on the flange actually moves backwards as it passes below the track, while the point A, as it completes each curve, is at rest for the instant on the track, just before it starts afresh. The speed of the train does not affect these very curious facts.
[II-60]
In the subjoined diagram A and B represent two islands, round which a river runs as is indicated, with fifteen connecting bridges, that lead from the islands to the river’s banks.
Can you contrive to pass in turn over all these bridges without ever passing over the same one twice?
In a school where two boys were taught to think out the bearings of their work, a sharp pupil remarked that 100 is represented on paper by the smallest digit and two cyphers, which are in themselves symbols of nothing. The master, quick to catch any signs of mental activity, took the opportunity to propound to his class the following ingenious puzzle:—How can the sum of 100 be represented exactly in figures and signs by making use of all the nine digits in their reverse order? This is how it is done:—
9 × 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 100.
Another ingenious method of using the nine digits, so that by simple addition they sum up to exactly 100, and each is used once only, is this:—
15 + 36 + 47 = 98 + 2 = 100
Here is another arrangement by which the nine digits written in their inverse order can be made to represent exactly 100:—
98 - 76 + 54 + 3 + 21 = 100.
Here is yet another way of arriving at 100 by using each of the digits, this time with an 0:—
401⁄2
5938⁄76
100
[II-61]
Here is quite a pretty scientific experiment, which any one of a handy turn can construct and arrange:—
The spiral track is formed of two wires bent, and connected by curved cross-pieces. The upper twist is turned so that the ball starts on a horizontal course.
During the accelerated descent the ball acquires momentum enough to keep it on the vertical track, held outwardly against the wires by centrifugal force.
Convenient proportions are: height of spiral two feet, diameter six inches, and wire rails three-quarters of an inch apart.
[II-62]
A close approach to an ideal flying machine can be made with a little ingenuity. Two Y-shaped standards, secured to the backbone rod, support two wires which carry wings of thin silk, provided with light stays, and connected at their inner corners with the backbone by threads.
Rubber bands are attached to a loop on the inner end of the crank shaft, and secured to a post at the rear. These are twisted by turning the shaft with the cross wire, and when the tension is released the wings beat the air and carry the bird forward. It is known as Penaud’s mechanical bird, and has been sold as an attractive toy.
[II-63]
A simple apparatus constructed on the lines of this illustration will give an interesting proof of the laws which govern falling bodies on an inclined plane or on a curved path.
In the case of the inclined plane the ball is governed by the usual law which controls falling bodies. In that of the concave circular curve, as it is accelerated rapidly at the start, it makes its longer journey in quicker time. In the case of the cycloidal curve it acquires a high velocity. This curve has therefore been called “the curve of swiftest descent,” as a falling body passes over it in less time than upon any path except the vertical.
[II-64]
Here is another very simple and pretty illustration of the natural forces which come into play in “looping the loop.”
This scientific toy on a small scale may be easily made, if care is taken that the height of the higher end of the rails is to the height of the circular part in a greater ratio than 5 to 4.
A ball started at the higher end follows the track throughout, and at one point is held by centrifugal force against the under side of the rails, against the force of gravity.
[II-65]
If a ball is fired point blank from a perfectly horizontal gun, and travels half a mile over a level plain before it touches ground, and another similar ball is at the same moment dropped from the same height by some mechanical means, the two balls will touch ground simultaneously. The flight, however long, of one through the air has no influence upon the force of gravity, which draws it earthward at the same resistless rate as it draws the other that is merely dropped.
A quick method of multiplying any number of figures by 5 is to divide them by 2, annexing a cypher to the result when there is no remainder, and if there is any remainder annexing a 5. Thus:—
464 × 5 = 2320; 464 ÷ 2 = 232, annex 0, = 2320.
753 × 5 = 3765; 753 ÷ 2 = 376, annex 5, = 3765.
[II-66]
A duck begins to swim round the edge of a circular pond, and at the same moment a water spaniel starts from the middle of the pond in pursuit of it.
If both swim at the same pace, how must the dog steer his course so that he is sure in any case to overtake the duck speedily?
Louis Napoleon, Emperor 1852
1852 | 1852 | 1852 | |||
date | 1 | date | 1 | date | 1 |
of | 8 | of | 8 | of | 8 |
his | 0 | Empress’s | 2 | their | 5 |
birth | 8 | birth | 6 | marriage | 3 |
1869 | 1869 | 1869 |
Thus, by a most remarkable series of coincidences, the principal dates of the Emperor and Empress of the French added, as is shown above, to the year of the Emperor’s accession, express in each instance the year before his fall.
[II-67]
In this domino diagram we have a pretty and practical proof that the squares of the sides containing the right angle in any right-angled triangle are together equal to the square of the side opposite to the right angle.
Each stone forms two squares, and it is easily seen that the number of squares which make up the whole square on the line opposite the right angle are equal to the number of those which make up the two whole squares on the lines which contain that angle.
A second point to be noticed is that the number of pips on the large square are equal to the number on the other two squares combined, an arrangement of the stones which forms quite a game of patience to reproduce, if this pattern is not at hand.
[II-68]
Four colours at most are needed to distinguish the surfaces of separate districts on any plane map, so that no two with a common boundary are tinted alike.
On this diagram A, B, and C, are adjoining districts, on a plane surface, and X borders, in one way or another, upon each.
It is clearly impossible to introduce a fifth area which shall so adjoin these four districts as to need another tint.
Here is another freak of figures:—
9 | × | 1 | - | 1 | = | 8 |
9 | × | 21 | - | 1 | = | 188 |
9 | × | 321 | - | 1 | = | 2888 |
9 | × | 4321 | - | 1 | = | 38888 |
9 | × | 54321 | - | 1 | = | 488888 |
9 | × | 654321 | - | 1 | = | 5888888 |
9 | × | 7654321 | - | 1 | = | 68888888 |
9 | × | 87654321 | - | 1 | = | 788888888 |
9 | × | 987654321 | - | 1 | = | 8888888888 |
[II-69]
A bird made fast to a pole six inches in diameter by a cord fifty feet long, in its flight first uncoils the cord, keeping it always taut, and then recoils it in the reverse direction, rewinding the coils close together. If it starts with the cord fully coiled, and continues its flight until it brings up against the pole, how far does it fly in its double course?
Ask a person to write down in a line any number of figures, then to add them all together as units, and to subtract the result from the sum set down. Let him then strike out any one figure, and add the others together as units, telling you the result.
If this has been correctly done, the figure struck out can always be determined by deducting the final total from the multiple of 9 next above it. If the total happens to be a multiple of 9, then a 9 was struck out.
[II-70]
A fly, starting from the point A, just outside a revolving disc, and always making straight for its mate at the point B, crosses the disc in four minutes, while the disc is revolving twice. What effect has the revolution of the disc on the path of the fly?
This Magic Square is so arranged that the product of the continued multiplication of the numbers in each row, column, or diagonal is 4096, which is the cube of the central 16.
8 | 256 | 2 |
4 | 16 | 64 |
128 | 1 | 32 |
[II-71]
The railway, D E F, has two sidings, D B A and F C A, connected at A. The rails at A, common to both, are long enough to hold a single wagon such as P or Q, but too short to admit the whole of the engine R, which, if it runs up either siding, must return the same way.
How can the engine R be used to interchange the wagons P and Q without allowing any flying shunts?—From Ball’s Mathematical Recreations.
[II-72]
It is a little known and very interesting fact that an equilateral triangle can easily be drawn by rule of thumb in the following way:—Take a triangle of any shape or size, and on each of its sides erect an equilateral triangle. Find and join the centres of these, and a fourth equilateral triangle is always thus formed, as shown by the dotted lines.
These centres are centres of gravity, and they are symmetrically distributed around the centre of gravity of the original triangle.
The figure formed by joining them must therefore be symmetrical, and, as in this case, it is a triangle, it must be always equilateral.
[II-73]
There can be no better instance of how the eye may be deceived than is so strikingly afforded in these very curious diagrams:—
The square which obviously contains sixty-four small squares, is to be cut into four parts, as is shown by the thicker lines. When these four pieces are quite simply put together, as shown in the second figure, there seem to be sixty-five squares instead of sixty-four.
This phenomena is due to the fact that the edges of the four pieces, which lie along the diagonal A B, do not exactly coincide in direction. In reality they include a very narrow diamond, not easily detected, whose area is just equal to that of one of the sixty-four small squares.
Very curious are the results when the nine digits in reverse order are multiplied by 9 and its multiples up to 81. Thus:—
9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | × | 9 | = | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | |
× | 18 | = | 1 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | |||||||||
× | 27 | = | 2 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 9 | 9 | 7 | |||||||||
× | 36 | = | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | |||||||||
× | 45 | = | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | |||||||||
× | 54 | = | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | |||||||||
× | 63 | = | 6 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | |||||||||
× | 72 | = | 7 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | |||||||||
× | 81 | = | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
It will be seen that the figures by which the reversed digits are multiplied reappear at the beginning and end of each result except the first, and that the figures repeated between them are to be found by dividing the divisors by 9 and subtracting the result from 9. Thus, 54 ÷ 9 = 6, and 9 - 6 = 3.
[II-74]
In this nest of triangles there are no less than six hundred and fifty-three distinct triangles of various shapes and sizes.
[II-75]
In a chamber of the Great Pyramid an ancient Egyptian jar was found, marked with the device now known as Pharaoh’s seal.
Can you count the number of triangles or pyramids, of many sizes, but all of similar shape that are expressed on it? Solvers should draw the figure on a larger scale.
It is interesting to note that the repeated addition of odd numbers to one another can be so arranged as to produce cube numbers in due sequence. Thus:—
1 | = | 1 × 1 × 1 |
3 + 5 | = | 2 × 2 × 2 |
7 + 9 + 11 | = | 3 × 3 × 3 |
13 + 15 + 17 + 19 | = | 4 × 4 × 4 |
21 + 23 + 25 + 27 + 29 | = | 5 × 5 × 5 |
and so on, to any extent.
[II-76]
In a large old-fashioned garden walks were arranged round a central fountain in the shape of a Maltese cross.
If four persons started at noon from the fountain, walking round the four paths at two, three, four and five miles an hour respectively, at what time would they meet for the third time at their starting-point, if the distance on each track was one-third of a mile?
When the tens of two numbers are the same, and their units added together make ten, multiply the units together, increase one of the tens by unity, and multiply it by the other ten. The result is the product of the two original numbers, if the first result follows the other. Thus:—
43 × 47 = 2021.
[II-77]
Can you cut Fig. A into two parts, and so rearrange these that they form either Fig. B or Fig. C?
The two parts of A must not be turned round to form B or C, but must retain their original direction.
Coal may fail us, but we can never run short of material for “words that burn.” It has been calculated that if a man could read 100,000 words in an hour, and there were 4,650,000 men available, they could not pronounce the possible variations which could be formed from the alphabet in 70,000 years!
It is possible, in a sense, by the following neat method, to take 45 from 45, and find that 45 remains:—
987654321 | = | 45. |
123456789 | = | 45. |
864197532 | = | 45. |
[II-78]
Cut out in stiff cardboard four pieces shaped as Fig. 1, four as Fig. 2, and four as Fig. 3, taking care that they are all exactly true to pattern in shape and proportion to one another.
Now see whether you can put the twelve pieces together so as to form a perfect octagon.
Here is a proof that 7, if it cannot rival the mystic 9, has quaint properties of its own:—
1 | 5 | 8 | 7 | 3 | × | 7 | = | 1 | 1 | 1 | 1 | 1 | 1 | |
3 | 1 | 7 | 4 | 6 | × | 7 | = | 2 | 2 | 2 | 2 | 2 | 2 | |
4 | 7 | 6 | 1 | 9 | × | 7 | = | 3 | 3 | 3 | 3 | 3 | 3 | |
6 | 3 | 4 | 9 | 2 | × | 7 | = | 4 | 4 | 4 | 4 | 4 | 4 | |
7 | 9 | 3 | 6 | 5 | × | 7 | = | 5 | 5 | 5 | 5 | 5 | 5 | |
9 | 5 | 2 | 3 | 8 | × | 7 | = | 6 | 6 | 6 | 6 | 6 | 6 | |
1 | 1 | 1 | 1 | 1 | 1 | × | 7 | = | 7 | 7 | 7 | 7 | 7 | 7 |
1 | 2 | 6 | 9 | 8 | 4 | × | 7 | = | 8 | 8 | 8 | 8 | 8 | 8 |
1 | 4 | 2 | 8 | 5 | 7 | × | 7 | = | 9 | 9 | 9 | 9 | 9 | 9 |
Here is an arithmetical curiosity:—
9 | × | 9 | + | 7 | = | 8 | 8 | ||||||||||||||
9 | × | 9 | 8 | + | 6 | = | 8 | 8 | 8 | ||||||||||||
9 | × | 9 | 8 | 7 | + | 5 | = | 8 | 8 | 8 | 8 | ||||||||||
9 | × | 9 | 8 | 7 | 6 | + | 4 | = | 8 | 8 | 8 | 8 | 8 | ||||||||
9 | × | 9 | 8 | 7 | 6 | 5 | + | 3 | = | 8 | 8 | 8 | 8 | 8 | 8 | ||||||
9 | × | 9 | 8 | 7 | 6 | 5 | 4 | + | 2 | = | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||||
9 | × | 9 | 8 | 7 | 6 | 5 | 4 | 3 | + | 1 | = | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | ||
9 | × | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | + | 0 | = | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
[II-79]
A farmer’s wife kept a pure strain of Aylesbury ducks for market on a square pond, with a duck-house at each corner. As trade grew brisk she found that she must enlarge her pond. An ingenious neighbour undertook to arrange this without altering the shape of the pond, and without disturbing the duck-houses. What was his plan?
It would seem impossible to subtract 69 from 55, but it can be arranged thus, with six as a remainder:—
SIX | IX | XL |
IX | X | L |
S | I | X |
[II-80]
Cut out in cardboard twenty triangular pieces exactly the size and shape of this one, and try to place them together so that they form a perfect square.
The decimal equivalent of 1⁄13 is .076923. This (omitting the point), multiplied by 1, 3, 4, 9, 10, or 12, yields results in which the same figures appear in varied order, but similar sequence, and multiplied by 2, 5, 6, 7, 8, or 11, it yields a different series, with similar characteristics. Thus:—
76923 | × | 1 | = | 76923 | 76923 | × | 2 | = | 153846 |
× | 3 | = | 230769 | × | 5 | = | 384615 | ||
× | 4 | = | 307692 | × | 6 | = | 461538 | ||
× | 9 | = | 692307 | × | 7 | = | 538461 | ||
× | 10 | = | 769230 | × | 8 | = | 615384 | ||
× | 12 | = | 923076 | × | 11 | = | 846153 |
A kaleidoscope cylinder contains twenty small pieces of coloured glass. As we turn it round, or shake it, so as to make ten changes of pattern every minute, it will take the inconceivable space of time of 462,880,899,576 years and 360 days to exhaust all the possible symmetrical variations. (The 360 days is good!)
[II-81]
Here is an amusing little exercise for the ingenuity of our solvers.
Take six sharp pins, and puzzle out how to stick them into six of the black dots, so that no two pins, are on the same line, in any direction, vertical, horizontal, or diagonal.
[II-82]
The middle of a large playground was paved with sixty-four square flagstones of equal size, which are numbered on this diagram from one to sixty-four.
1 | 9 | 17 | 25 | 33 | 41 | 49 | 57 |
2 | 10 | 18 | 26 | 34 | 42 | 50 | 58 |
3 | 11 | 19 | 27 | 35 | 43 | 51 | 59 |
4 | 12 | 20 | 28 | 36 | 44 | 52 | 60 |
5 | 13 | 21 | 29 | 37 | 45 | 53 | 61 |
6 | 14 | 22 | 30 | 38 | 46 | 54 | 62 |
7 | 15 | 23 | 31 | 39 | 47 | 55 | 63 |
8 | 16 | 24 | 32 | 40 | 48 | 56 | 64 |
One of the schoolmasters, who had a head for puzzles, took his stand upon the square here numbered 19, and offered a prize to any boy who, starting from the square numbered 46, could make his way to him, passing through every square once, and only once. It was after many vain attempts that the course was at last discovered. Can you work it out?
[II-83]
Place twelve draughtsmen, or buttons, in a square, so that you count four along each side of it, thus:—
Now take the same men or buttons, and arrange them so that they form another square, and you can count five along each side of it.
Here is a good specimen of the eccentricities and powers of numbers:—
153846 | × | 13 | = | 1999998 |
230769 | × | 13 | = | 2999997 |
307692 | × | 13 | = | 3999996 |
384615 | × | 13 | = | 4999995 |
461538 | × | 13 | = | 5999994 |
538461 | × | 13 | = | 6999993 |
615384 | × | 13 | = | 7999992 |
692307 | × | 13 | = | 8999991 |
[II-84]
She was quite an old maid, and her age was a most absolute secret. Determined to discover it, her scapegrace nephew, on Christmas Eve, produced these tables, and asked her with well simulated innocence on which of them she could see the number of her age.
1 | 23 | 45 | 2 | 23 | 46 | 16 | 27 | 54 | ||
3 | 25 | 47 | 3 | 26 | 47 | 17 | 28 | 55 | ||
5 | 27 | 49 | 6 | 27 | 50 | 18 | 29 | 56 | ||
7 | 29 | 51 | 7 | 30 | 51 | 19 | 30 | 57 | ||
9 | 31 | 53 | 10 | 31 | 54 | 20 | 31 | 58 | ||
11 | 33 | 55 | 11 | 34 | 55 | 21 | 48 | 59 | ||
13 | 35 | 57 | 14 | 35 | 58 | 22 | 49 | 60 | ||
15 | 37 | 59 | 15 | 38 | 59 | 23 | 50 | 61 | ||
17 | 39 | 61 | 18 | 39 | 62 | 24 | 51 | 62 | ||
19 | 41 | A | 19 | 42 | B | 25 | 52 | C | ||
21 | 43 | 22 | 43 | 26 | 53 |
8 | 27 | 46 | 4 | 23 | 46 | 32 | 43 | 54 | ||
9 | 28 | 47 | 5 | 28 | 47 | 33 | 44 | 55 | ||
10 | 29 | 56 | 6 | 29 | 52 | 34 | 45 | 56 | ||
11 | 30 | 57 | 7 | 30 | 53 | 35 | 46 | 57 | ||
12 | 31 | 58 | 12 | 31 | 54 | 36 | 47 | 58 | ||
13 | 40 | 59 | 13 | 36 | 55 | 37 | 48 | 59 | ||
14 | 41 | 60 | 14 | 37 | 60 | 38 | 49 | 60 | ||
15 | 42 | 61 | 15 | 38 | 61 | 39 | 50 | 61 | ||
24 | 43 | 62 | 20 | 39 | 62 | 40 | 51 | 62 | ||
25 | 44 | D | 21 | 44 | E | 41 | 52 | F | ||
26 | 45 | 22 | 45 | 42 | 53 |
From her answer he was able to calculate that the old lady was fifty-five.
The tell-tale tables disclosed her age thus:—As it appeared in tables A, B, C, E, and F, he added together the numbers at the top left-hand corners, and found the total to be fifty-five. This rule applies in all cases.
[II-85]
Of the many paper-cutting tricks which appeal to us none is more simple and attractive than this:—
Take a piece of paper, say 5 inches by 3 inches, but any oblong shape and size will do, and after folding it four times cut it lengthways up the centre. Unfold the pieces, and to your surprise you will find a perfect cross and other pieces in pairs of the shapes shown above. The puzzle is how to fold the paper.
The paper must be folded first so that B comes upon C, then so that A comes upon D, then from D to C, and lastly from E to C. If it is now cut lengthways exactly along the centre the figures shown on the original diagram will be formed, which resemble a cross and lighted candles on an altar.
[II-86]
Take a thin board, about eight inches square, and mark it out into thirty-six equal parts; bore a hole in the centre of each part, and then fit in a small wooden peg, leaving about a quarter inch above the surface, as is shown in Fig. 1, the section below the diagram.
Prepare thirty-six pieces of white or coloured cardboard of the length A to B, and place them over the pegs in any direction in which they will fit so as to form some such symmetrical pattern as is given on the second diagram, putting two holes only on each peg. Chess-players will see that this is the regular knight’s move.
Quite a number of beautiful[II-87] designs can be thus formed, and those who have not the means at hand for making a complete set can enjoy the puzzle by merely marking out thirty-six squares, and drawing lines from centre to centre of the exact length from A to B, with black or coloured pencils.
Divide this figure into four similar and equal parts.
The solution of the pretty little problem: place three twos in three different groups, so that twice the first group, or half the third group equals the second group, is this:—
22 + 2 = 12 2 - 22 = 1 2 + 22 = 2
[II-88]
The following figure, which represents part of a brick wall, cannot be marked out along all the edges of the bricks in less than six continuous lines without going more than once over the same line:—
Here, in strong contrast to the simple figure given above, which could not be traced without lifting the pen six times from the paper, is an intricate design, the lines of which, on the upper or on the lower half, can be traced without any break at all.
The general rule that governs such cases is, that where an uneven number of lines meet a fresh start has to be made. In the diagram now given the only such points are at the extremities of the upper and lower halves of the figure at A and X. At all other points two, or four, or six lines converge, and there is no break of continuity in a tracing of the figure.
[II-89]
Can you suggest quite a simple and practical way to fix the points on the sides of a square which will be at the angles of an octagon formed by cutting off equal corners of the square, as shown below?
Very interesting and curious are the properties of the figures 142857, used in varied order but always in similar sequence, in connection with 7 and 9:—
1 | 4 | 2 | 8 | 5 | 7 | × | 7 | = | 9 | 9 | 9 | 9 | 9 | 9 | ÷ | 9 | = | 1 | 1 | 1 | 1 | 1 | 1 | |
2 | 8 | 5 | 7 | 1 | 4 | × | 7 | = | 1 | 9 | 9 | 9 | 9 | 9 | 8 | ÷ | 9 | = | 2 | 2 | 2 | 2 | 2 | 2 |
4 | 2 | 8 | 5 | 7 | 1 | × | 7 | = | 2 | 9 | 9 | 9 | 9 | 9 | 7 | ÷ | 9 | = | 3 | 3 | 3 | 3 | 3 | 3 |
5 | 7 | 1 | 4 | 2 | 8 | × | 7 | = | 3 | 9 | 9 | 9 | 9 | 9 | 6 | ÷ | 9 | = | 4 | 4 | 4 | 4 | 4 | 4 |
7 | 1 | 4 | 2 | 8 | 5 | × | 7 | = | 4 | 9 | 9 | 9 | 9 | 9 | 5 | ÷ | 9 | = | 5 | 5 | 5 | 5 | 5 | 5 |
8 | 5 | 7 | 1 | 4 | 2 | × | 7 | = | 5 | 9 | 9 | 9 | 9 | 9 | 4 | ÷ | 9 | = | 6 | 6 | 6 | 6 | 6 | 6 |
[II-90]
The subjoined diagram shows how a square with sides that measure each 12 yards can be divided into five triangles, no two of which are of equal area, and of which the sides and areas can be expressed in yards by whole numbers:—
The areas of these triangles are 6, 12, 24, 48, and 54 square yards respectively, and the sum of these, 144 square yards, is the area of the square.
Our readers may remember the remarkable fact that the figures of the sum, £12, 12s. 8d., when written thus, 12,128, exactly represent the number of farthings it contains. Now this, so far as we know, is the only instance of the peculiarity, but there are at least five other cases which come curiously near to it. They are these:—
£ | s. | d. | ||||
---|---|---|---|---|---|---|
9 | 9 | 6 | = | 9096 | farthings | |
6 | 6 | 4 | = | 6064 | „ | |
3 | 3 | 2 | = | 3032 | „ | |
10 | 10 | 6 | 1⁄2 | = | 10106 | „ |
13 | 13 | 8 | 1⁄2 | = | 13138 | „ |
[II-91]
If a ladder, with rungs 1 foot apart, rests against a wall, and its thirteenth rung is 12 feet above the ground, the foot of the ladder is 25 feet from the wall.
Proof.—Drop a perpendicular from A to B. Then, as A B C is a right angle, and the squares on A C, A B, are 169 feet and 144 feet, the square on C B must be 25 feet, and the length of C B is 5 feet. We thus move 5 feet towards the wall in going 13 feet up the ladder, and in mounting 65 feet (five times as far) we must cover 25 feet.
[II-92]
A prettily ingenious method of dividing the area of a circle into quarters, each of them a perfect curve, with perimeter (or enclosing line) equal to the circumference of the circle, and with which four circles can be formed, is clearly shown by the subjoined diagrams:—
The host of a large hotel at Cairo noticed that his Visitors’ Book contained the names of an Austrian, a Brazilian, a Chinaman, a Dane, an Englishman, a Frenchman, a German, and a Hungarian. Moved by this curious alphabetical list, he offered them all free quarters and the best of everything if they could arrange themselves at a round dining-table so that not one of them should have the same two neighbours on any two occasions for 21 successive days.
The following is one of many ways in which this arrangement can be made, and it seems to be the simplest of them all.
Number the persons 1 to 8; and for our first day set them down in numerical order except that the two centre ones (4 and 5) change places:
(1st day)— | 1 | 2 | 3 | 5 | 4 | 6 | 7 | 8 |
Keep the 1 and the 7 unaltered but double each of the other numbers. When the product is greater than 8, divide by 7, and only set down the remainder. Thus we get:
(8th day)— | 1 | 4 | 6 | 3 | 8 | 5 | 7 | 2 |
(Here the fourth figure 3 is 5 × 2 ÷ 7, giving remainder 3, and so on.)
Repeat this operation once more:
(15th day)— | 1 | 8 | 5 | 6 | 2 | 3 | 7 | 4 |
To fill in the intermediate days we have only to keep 1 unchanged and let the remaining numbers run downwards in simple numerical order, following 8 with 2, 2 with 3, and so on. Thus:—
1st day— | 1 | 2 | 3 | 5 | 4 | 6 | 7 | 8 |
2nd day— | 1 | 3 | 4 | 6 | 5 | 7 | 8 | 2 |
3rd day— | 1 | 4 | 5 | 7 | 6 | 8 | 2 | 3 |
4th day— | 1 | 5 | 6 | 8 | 7 | 2 | 3 | 4 |
5th day— | 1 | 6 | 7 | 2 | 8 | 3 | 4 | 5 |
6th day— | 1 | 7 | 8 | 3 | 2 | 4 | 5 | 6 |
7th day— | 1 | 8 | 2 | 4 | 3 | 5 | 6 | 7 |
8th day— | 1 | 4 | 6 | 3 | 8 | 5 | 7 | 2 |
9th day— | 1 | 5 | 7 | 4 | 2 | 6 | 8 | 3 |
10th day— | 1 | 6 | 8 | 5 | 3 | 7 | 2 | 4 |
11th day— | 1 | 7 | 2 | 6 | 4 | 8 | 3 | 5 |
12th day— | 1 | 8 | 3 | 7 | 5 | 2 | 4 | 6 |
13th day— | 1 | 2 | 4 | 8 | 6 | 3 | 5 | 7 |
14th day— | 1 | 3 | 5 | 2 | 7 | 4 | 6 | 8 |
15th day— | 1 | 8 | 5 | 6 | 2 | 3 | 7 | 4 |
16th day— | 1 | 2 | 6 | 7 | 3 | 4 | 8 | 5 |
17th day— | 1 | 3 | 7 | 8 | 4 | 5 | 2 | 6 |
18th day— | 1 | 4 | 8 | 2 | 5 | 6 | 3 | 7 |
19th day— | 1 | 5 | 2 | 3 | 6 | 7 | 4 | 8 |
20th day— | 1 | 6 | 3 | 4 | 7 | 8 | 5 | 2 |
21st day— | 1 | 7 | 4 | 5 | 8 | 2 | 6 | 3 |
This completes the schedule. It will be found on examination that every number is between every pair of the other numbers once, and once only.
In order to reduce our first-day ring to exact numerical order we have only to interchange the numbers 4 and 5 throughout. The first three lines for example would then become:
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
1 | 3 | 5 | 6 | 4 | 7 | 8 | 2 | |
1 | 5 | 4 | 7 | 6 | 8 | 2 | 3, | etc. |
or, by putting letters for figures,
A | B | C | D | E | F | G | H | |
A | C | E | F | D | G | H | B | |
A | E | D | G | F | H | B | C, | etc. |
An arrangement of the guests is thus arrived at for twenty-one successive days, so that not one of them has the same two neighbours on any two occasions.
[II-93]
Can you apply the two oblongs drawn below to the two concentric squares, so as to produce thirty-one perfect squares?
Take a piece of cardboard in the form of a Greek cross with arms, as shown here, and divide it by two straight cuts, so that the pieces when reunited form a perfect square.
The diagrams which we give below show how a hollow square can be formed of the pieces of three-quarters of another square from which a corner has been cut away:—
[II-96]
The subjoined diagram shows how a square of paper or cardboard may be cut into nine pieces which, when suitably arranged, form five perfect squares.
On how many days can fifteen schoolgirls go out for a walk so arranged in rows of three, that no two are together more than once?
Fifteen schoolgirls can go out for a walk on seven days so arranged in rows of three that no two are together more than once.
It is said, on high authority, that there are no less than 15,567,522,000 different solutions to this problem. Here is one of them, given in Ball’s Mathematical Recreations, in which k stands for one of the girls, and a, b, c, d, e, f, g, in their modifications, for her companions on the seven different days:—
Sunday | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday |
---|---|---|---|---|---|---|
ka1a2 | kb1b2 | kc1c2 | kd1d2 | ke1e2 | kf1f2 | kg1g2 |
b1d1f1 | a1d2e2 | a1d1e1 | a2b2c2 | a2b1c1 | a1b2c1 | a1b1c2 |
b2e1g1 | a2f2g2 | a2f1g1 | a1f2g1 | a1f1g2 | a2d2e1 | a2d1e2 |
c1d2g2 | c1d1g1 | b1d2f2 | b1e1g2 | b2d1f2 | b1e2g1 | b2d2f1 |
c2e2f2 | c2e1f1 | b2e2g2 | c1e2f1 | c2d2g1 | c2d1g2 | c1e1f2 |
It is an excellent game of patience, for those who have time and inclination, to place the figures 1 to 15 inclusive in seven such columns, so as to fulfil the conditions.
[II-97]
It is possible from a Greek cross to cut off four equal pieces which, when put together, will form another Greek cross exactly half the size of the original, and by this process to leave a third Greek cross complete.
This is how to do it:—
Bisect C D at N, F G at O, K L at P, and B I at Q.
Join N H, O M, P A, Q E, intersecting at R, S, T, U.
Bisect A R at V, E S at W, T H at X, and M U at Y.
Join V Q, N Y, W P, O X, N W, V O, Q X, Y P.
Carefully cut out from the original Greek cross the newly-formed Greek cross, and the odd pieces from around it can be arranged to form another Greek cross.
[II-98]
The greatest number of plane figures that can be formed by the union of ten straight lines is thirty-six.
The two equal lines at right angles are first drawn, and each is divided into eight equal parts. The other eight straight lines are then drawn from a to a, from b to b, and so on, until the hammock-shaped network of thirty-six plane figures is produced.
[II-99]
It will be seen on the diagram below that seven straight vertical cuts with a table-knife will divide a crumpet into twenty-eight parts.
The nine digits can be so adjusted as to form an equation, or, if taken as weight, to balance the scales. Thus:—
9, 61⁄2 = 3, 5, 74⁄8
How large is the sea? This is a bold big question, and any possible answer involves a considerable stretch of the imagination. Here is a startling illustration of its vast volume:—
If the water of the sea could be gathered into a round column, reaching the 93,000,000 miles which separate us from the sun, the diameter of this column would be nearly two miles and a half!
It is perhaps even more difficult to realise that this mighty mass of waters could be dissipated in a few moments, if the column we have imagined could become ice, and if the entire heat of the sun could be concentrated upon it. All would be melted in one second of time, and converted into steam in eight seconds!
[II-100]
Many of our readers may be glad to know an easy way to make an envelope of any shape or size.
This diagram speaks for itself. When the lines A B, A C, D B, D C have been drawn, the corners of the rectangle, H E G F, are folded over, as shown by the dotted lines, after the corners have been rounded, and the margins touched with gum.
[II-101]
The diagrams below will show how a piece of paper, 15 inches long and 3 inches wide, can be cut into five parts, and rearranged to form a perfect square.
The following astounding calculation is answer enough to a question put by one of the authors of “Rejected Addresses:”—“Who filled the butchers’ shops with big blue flies?”
A pair of blow-flies can produce ten thousand eggs, which mature in a fortnight. If every egg hatches out, and there are equal numbers of either sex, which forthwith increase and multiply at the same rapid rate, and if their descendants do the like, so that all survive at the end of six months, it has been calculated that, if thirty-two would fill a cubic inch of space, the whole innumerable swarm would cover the globe, land and sea, half a mile deep everywhere.
[II-102]
Here is quite a neat way to make an equilateral triangle without using compasses:—
Take a piece of paper exactly square, which we will call A B C D, fold it across the middle, so as to form the crease E F; unfold it, and fold it again so that the corner D falls upon the crease E F at G, and the angle at G is exactly divided. Again unfold the square, and from G draw the straight lines G C and G D. Then G C D is the equilateral triangle required.
How can we be sure that the value of a Frenchwoman is just 1 franc 8 centimes?
We can be sure that the exact value of a Frenchwoman is 1 franc 8 centimes, for
Two Frenchwomen | = | Deux Françaises. | |
Deux Françaises | = | deux francs seize. (2 francs 16). |
|
Therefore, | One Frenchwoman | = | 1 franc 8! |
[II-103]
If a 52-feet ladder is set up so as just to clear a garden wall 12 feet high and 15 feet from the building, it will touch the house 48 feet from the ground.
Our diagram shows this, and also, by a dotted line, the only other possible position in which it could fulfil the conditions, if it were then of any practical use.
If one pin could be dropped into a vessel this week, two the next, four the next, and so on, doubling each time for a year, the accumulated quantity would be 4,503,599,627,370,495, and their weight, if we reckon 200 pins to the ounce, would amount to 628,292,358 tons, a full load for 27,924 ships as large as the Great Eastern, whose capacity was 22,500 tons.
[II-104]
When at the signpost which said “To A 4 miles, to B 9 miles” on one arm, and on the other “To C 3 miles, to D —— miles,” and the boy whom I met could only tell me that the farm he worked at was equidistant from A, B, C, and D, and nearer to them than to the signpost, and that all the roads ran straight, I found, thanks to memories of Euclid, that I was 12 miles from D.
Since B A and D C intersect outside the circle at the signpost E,
therefore | A E × E B = C E × E D. |
but | A E × E B = 4 × 9 = 36, |
therefore | C E × E D = 36, |
and | C E = 3, therefore E D = 12. |
Q.E.D.
[II-105]
This seems to be quite a poor attempt at a Maltese cross, but there is method in the madness of its make.
It is possible by two straight cuts to divide this uneven cross into four pieces which can be arranged together again so that they form a perfect square. Where must the cuts be made, and how are the four pieces rearranged?
We all remember that splendidly terse message of success sent home to the authorities by Napier when he had conquered the armies of Scinde—“Peccavi!” (I have sinned).
History had an excellent opportunity for repeating itself when Admiral Dewey defeated the Spaniel fleet, for he might have conveyed the news of his victory by the one burning word—“Cantharides”—“The Spanish fly!”
[II-106]
In the diagram below a square is subdivided into twenty-five cells.
Can you, keeping always on the straight lines, cut this into four pieces, and arrange these as two perfect squares, in which every semicircle still occupies the upper half of its cell?
The following very simple recipe for a home-made microscope has been suggested by a Fellow of the Royal Microscopical Society:—
Take a piece of black card, make a small pinhole in it, put it close to the eye, and look at some small object closely, such as the type of a newspaper. A very decided magnifying power will be shown thus.
[II-107]
Where on this diagram must we place twenty-one pins or dots so that they fall into symmetrical design and form thirty rows, with three in each row?
Those who are fond of figures will find it a most interesting exercise to see how far they are able to represent every number, from one up to a hundred, by the use of four fours. Any of the usual signs and symbols of arithmetic may be brought into use. Here are a few instances of what may thus be done:—
3 = 4 + 4 + 44; 9 = 4 + 4 + 44;
36 = 4(4 + 4) + 4; 45 = 44 + 44;
52 = 44 + 4 + 4; 60 = 4 × 4 × 4 - 4.
[II-108]
This figure, which now forms a square, and the quarter of that square, can be so divided by two straight lines that its parts, separated and then reunited, form a perfect square. How is this done?
Here we have arranged five rows of five cards each, so that no two similar cards are in the same lines. Counting the ace as eleven, each row, column, and diagonal adds up to exactly twenty-six.
After you have looked at this Magic Square, and set it out on the table, shuffle the cards, and try to re-arrange them so as to give the same results.
[II-109]
Cut a square of paper or cardboard into seven such pieces as are marked in this diagram.
Can you rearrange them so that they form the figure 8.
There are several ways in which strange juggling with figures and numbers is to be done, but none is more curious than this:—
Ask someone, whose age you do not know, to write down secretly the date and month of his birth in figures, to multiply this by 2, to add 5, to multiply by 50, to add his age last birthday and 365. He then hands you this total only from this you subtract 615. This reveals to you at a glance his age and birthday.
Thus, if he was born April 7 and is 23, 74 (the day and the month) × 2 = 148; 148 + 5 = 153; 153 × 50 = 7650; 7650 + 23 (his age) = 7673; and 7673 + 365 = 8038. If from this you subtract 615, you have 7423, which represents to you the seventh day of the fourth month, 23 years age! This rule works out correctly in all cases.
[II-110]
Cut out in stiff paper or cardboard two pieces of the shape and size of the small triangle, and four pieces of the shapes and sizes of the other three patterns—fourteen pieces in all.
The puzzle is to fit these pieces together so that they form a perfect oblong.
Here is a string of sentences, which may be used as stimulating mental gymnastics when we leave the “Land of Nod.”
A sleeper runs on sleepers, and in this sleeper on sleepers sleepers sleep. As this sleeper carries its sleepers over the sleepers that are under the sleeper, a slack sleeper slips. This jars the sleeper and its sleepers, so that they slip and no longer sleep.
Clever calculation has established a fact which we shall not be able to verify by personal experience. Whatever else may happen, the first day of a century can never fall on Sunday, Wednesday, or Friday.
[II-111]
On this cross there are seventeen distinct and perfect squares marked out at their corners by asterisks.
How few, and which, of these can you remove, so that not a single perfect square remains?
On a globe 2 feet in diameter the Dead Sea appears but as a small coloured dot. If it were frozen over there would be standing room on its surface for the whole human race, allowing 6 square feet for each person; and if they were all suddenly engulfed, it would merely raise the level of the lake about 4 inches.
[II-112]
Here is quite a good exercise for ingenious brains and fingers. Cut a piece of stiff paper or cardboard into such a right-angled triangle as is shown below.
Can you divide this into only three pieces, which, when rearranged, will form the design given as No. 2?
I sent an order for dwarf roses to a famous nursery-garden, asking for a parcel of less than 100 plants, and stipulating that if I planted them 3 in a row there should be 1 over; if 4 in a row 2 over; if 5 in a row 3 over, and if 6 in a row 4 over, as a condition for payment.
The nurseryman was equal to the occasion, charged me for 58 trees, and duly received his cheque.
[II-113]
This puzzle is not so easy of solution as it may seem at first sight.
Take a counter, or a coin, and place it on one of the points; then push it across to the opposite point, and leave it there. Do this with a second counter or coin, starting on a vacant point, and continue this process until every point is covered, as we place the eighth counter or coin on the last point.
“Write down,” said a schoolmaster, “the nine digits in such order that the first three shall be one third of the last three, and the central three the result of subtracting the first three from the last.”
The arrangement which satisfies these conditions is, 219, 438, 657.
[II-114]
There is a sum of money of such sort that its pounds, shillings, and pence, written down as one continuous number, represent exactly the number of farthings which it contains. What is it?
2. If on a level track a train, running all the time at 30 miles an hour, slips a carriage, which is uniformly retarded by the brakes, and which comes to rest in 200 yards, how far has the train itself then travelled?
A traveller said to the landlord of an inn, “Give me as much money as I have in my hand, and I will spend sixpence with you.” This was done, and the process was twice repeated, when the traveller had no money left. How much had he at first?
How can we obtain eleven by adding one-third of twelve to four-fifths of seven?
5. Can you replace the missing figures in this mutilated long division sum?
2 | 1 | 5 | ) | * | 7 | * | 9 | * | ( | 1 | * | * | |
* | * | * | |||||||||||
* | 5 | * | 9 | ||||||||||
* | 5 | * | 5 | ||||||||||
* | 4 | * | |||||||||||
* | * | * |
[II-115]
I buy as many heads of asparagus in the market as can be contained by a string 1 foot long. Next day I take a string 2 feet long, and buy as many as it will gird, offering double the price that I have given before. Was this a reasonable offer?
7. As “one good turn deserves another,” first reverse me, then reverse my square, then my cube, then my fourth power. When all this is done no change has been made. What am I?
8. How can a thousand pounds be so conveniently stored in ten sealed bags that any sum in pounds from £1 to £1000 can be paid without breaking any of the seals?
This is at once a problem and a puzzle:—
Three gamblers, when they sit down to play, agree that the loser shall always double the sum of money that the other two have before them. After each of them has lost once, it is found that each has eight sovereigns on the table. How much money had each at starting?
11. When Tom’s back was turned, the boy sitting next to him rubbed out almost all his[II-116] sum. Tom could not remember the multiplier, and only this remained on his slate—
3 | 4 | 5 | ||
. | . | |||
. | . | . | . | |
. | . | . | . | |
. | . | 7 | 6 | . |
Can you reconstruct the sum?
12. The sum of the nine digits is 45. Can you hit upon other arrangements of 1, 2, 3, 4, 5, 6, 7, 8, 9, writing each of them once only, which will produce the same total. Of course fractions may be used.
13. The combined ages of Mary and Ann are forty-four years. Mary is twice as old as Ann was when Mary was half as old as Ann will be when Ann is three times as old as Mary was when Mary was three times as old as Ann. How old, then, is Mary?
Mr Oldboy was playing backgammon with his wife on the eve of his golden wedding, and could not make up his mind whether he should leave a blot where it could be taken up by an ace, or one which a tré would hit.
His grandson, at home from Cambridge for the Christmas vacation, solved the question for him easily. What was his decision?
[II-117]
15. I am aboard a steamer, anchored in a bay where the needle points due north, and exactly 1200 miles from the North Pole. If the course is perfectly clear, and I steam continuously at the rate of 20 miles an hour, always steering north by the compass needle, how long will it take me to reach the North Pole?
Three persons, A, B, and C, share twenty-one wine casks of equal capacity, of which seven are full, seven are half full, and seven are empty. How can these be so apportioned that each person shall have an equal number of casks, and an equal quantity of wine, without transferring any of it from cask to cask?
A hungry mouse, in search of provender, came upon a box containing ears of corn. He could carry three ears home at a time, and only had opportunity to make fourteen journeys to and fro. How many ears could he add to his store?
Take exactly equal quantities of lard and butter; mix a small piece of the butter intimately with all the lard. From this blend take a piece just as large as the fragment removed from the butter, and mix this thoroughly with the butter. Is there now more lard in the butter or more butter in the lard?
19. Here is an apparent proof that 2 = 3:—
4 - 10 = 9 - 15
4 - 10 + 25⁄4 = 9 - 15 + 25⁄4
and the square roots of these:—
2 - 5⁄2 = 3 - 5⁄2
therefore 2 = 3.
[II-118]
20. Our Parcel Post regulations limit the length of a parcel to 3 feet 6 inches, and the length and girth combined to 6 feet. What is the largest parcel of any size that can be sent through the post under these conditions?
How can we show, or seem to show, that either four, five, or six nines amount to one hundred?
22. Can you arrange nine numbers in the nine cells of a square, the largest number 100, and the least 1, so that the product by multiplication of each row, column and diagonal is 1000?
23. Seven London boys were at the seaside for a week’s holiday, and during the six week-days they caught four fine crabs in pools under the rocks, when the tide was out at Beachy Head.
Hearing of this, the twenty-one boys of a school in the neighbourhood determined to explore the pools; but with the same rate of success they only caught one large crab. For how long were they busy searching under the seaweed?
24. On how many nights could a watch be set of a different trio from a company of fifteen soldiers, and how often on these terms could one of them, John Pipeclay, be included?
25. If Augustus Cæsar was born on September 23rd, B.C. 63, on what day and in what year did he celebrate his sixty-third birthday, and by what five-letter symbol can we express the date?
[II-119]
A was born in 1847, B in 1874. In what years have the same two digits served to express the ages of both, if they are still living?
27.
28. A man started one Monday morning with money in his purse to buy goods in a neighbouring town. He paid a penny to cross the ferry, spent half of the money he then had, and paid another penny at the ferry on his return home.
He did exactly the same for the next five days, and on Saturday evening reached home with just one penny in his pocket. How much had he in his pocket on Monday before he reached the ferry?
29. Three men gathered mangoes, and agreed that next day they would give one to their monkey and divide the rest equally. The first who arrived gave one to the monkey, and then took his proper share; the second came later and did likewise, and the third later still, neither knowing that any one had preceded him. Finally they met, and, as there were still mangoes, gave one to the monkey, and shared the rest equally. How many mangoes at least must there have been if all the divisions were accurate?
[II-120]
I look at my watch between four and five, and again between seven and eight. The hands have, I find, exactly changed places, so that the hour-hand is where the minute-hand was, and the minute-hand takes the place of the hour-hand. At what time did I first look at my watch?
31. There is a number consisting of twenty-two figures, of which the last is 7. If this is moved to the first place, the number is increased exactly sevenfold. Can you discover this lengthy number?
A farmer borrowed from a miller a sack of wheat, 4 feet long and 6 feet in circumference. He sent in repayment two sacks, each 4 feet long and 3 feet in circumference. Was the miller satisfied?
33. Five gamblers, whom we will call A, B, C, D, and E, play together, on the condition that after each hazard he who loses shall give to all the others as much as they then have in hand.
Each loses in turn, beginning with A, and when they leave the table each has the same sum in hand, thirty-two pounds. How much had each at first?
Knowing that the square of 87 is 7569, how can we rapidly, without multiplication, determine in succession the squares of 88, 89, and 90?
35.
[II-121]
36. If there are twenty sorts of things from which 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 different selections can be made, how many of each sort are there?
Three women, with no money, went to market. The first had thirty-three apples, the second twenty-nine, the third twenty-seven. Each woman sold the same number of apples for a penny. They all sold out, and yet each received an equal amount of money. How was this?
38.
If a bun and a half cost three halfpence, how many do you buy for sixpence?
How many times in a day would the hands of a watch meet each other, if the minute-hand moved backward and the hour-hand forward?
How can half-a-crown be equally divided between two fathers and two sons so that a penny is the coin of smallest value given to them?
42. If the number of the revolutions of the wheel of a bicycle in six seconds is equal to the number of miles an hour at which it is running, what is the circumference of the wheel?
Hearing a clock strike, and being uncertain of the hour, I asked a policeman. He had a turn for figures, and replied: “Take half, a third, and a fourth of the hour that has just struck, and the total will be one larger than that hour.” What o’clock was it?
[II-122]
44.
45. If I jump off a table with a 20-lb. dumb-bell in my hand, what is the pressure upon me of its weight while I am in the air?
46. In charitable mood I went recently to a bazaar where there were four tents arranged to tempt a purchaser. At the door of each tent I paid a shilling, and in each tent I spent half of the money remaining in my purse, giving the door-keepers each another shilling as I came out.
It took my last shilling to pay the fourth door-keeper. How much money had I at first, and what did I spend in each tent?
47. Rain is falling vertically, at a speed of 5 miles an hour. I am walking through it at 4 miles an hour. At what angle to the vertical must I hold my umbrella, so that the raindrops strike its top at right angles?
48. The following interesting problem, translated from the original Sanscrit, is given by Longfellow in his “Kavanagh”:—
“A tree, 100 cubits high, is distant from a well 200 cubits. From the top of this tree one monkey descends, and goes to the well.[II-123] Another monkey leaps straight upwards from the top, and then descends to the well by the hypotenuse. Both pass over an equal space. How high does the second monkey leap?”
A steamboat 105 miles east of Tynemouth Lighthouse springs a leak. She puts back at once, and in the first hour goes at the rate of 10 miles an hour.
More and more water-logged, she decreases her speed each succeeding hour at the rate of one-tenth of what it has been during the previous hour. When will she reach the lighthouse?
If a hen and a half lays an egg and a half in a day and a half, how many eggs will twenty-one hens lay in a week?
If the population of Bristol exceeds by two hundred and thirty-seven the number of hairs on the head of any one of its inhabitants, how many of them at least, if none are bald, must have the same number of hairs on their heads?
A benevolent uncle has in his pocket a sovereign, a half-sovereign, a crown, a half-crown, a florin, a shilling, and a threepenny piece. In how many different ways can he tip his nephew, using only these coins, and how is this most easily determined?
Here is a prime problem, in more senses than one, which will tax the ingenuity of our solvers:—I am a prime number of three figures. Increased by one-third, ignoring fractions, I become a square number. Transpose my first[II-124] two figures and increase me by one-third, and again I am a square number. Put my first figure last, and increase me by one-third, and I am another square number. Reverse my three figures, and increase as before by one-third, and for a fourth time I become a square number. What are my original figures?
In how many different ways can six different things be divided between two boys?
What is quite the highest number that can be scored at six card cribbage by the dealer, if he has the power to select all the cards, and to determine the order in which every card shall be played?
56. A fanciful collector, who bought pictures with more regard to quantity than quality, gave instructions that the area of each frame should exactly equal that of the picture it contained, and that the frames should be of the same width all round.
At an auction he picked up a so-called “old master,” unframed, which measured 18 inches by 12 inches. What width of frame will fulfil his conditions?
57. Our family consists of my mother, a brother, a sister, and myself. Our average age is thirty-nine. My mother was twenty when I was born; my sister is two years my junior, and my brother is four years younger than she is. What are our respective ages?
[II-125]
A spider in a dockyard unwittingly attached her web to a mechanical capstan 1 foot in diameter, at the moment when it began to revolve. To hold her ground she paid out 73 feet of thread, when the capstan stopped, and she found herself drained of silk.
To make the best of a bad job she determined to unwind her thread, walking round and round the capstan at the end of the stretched thread. When she had gone a mile in her spiral path she stopped, tired and in despair. How far was she then from the end of her task?
A mountebank at a fair had six dice, each marked only on one face 1, 2, 3, 4, 5, or 6, respectively. He offered to return a hundredfold any stake to a player who should turn up all the six marked faces once in twenty throws. How far was this from being a fair offer?
60.
(A groat = 4d.)
Two wineglasses of equal size are respectively half and one-third full of wine. They are filled up with water, and their contents are then mixed. Half of this mixture is finally poured back into one of the wineglasses. What part of this will be wine and what part will be water?
[II-126]
A legend goes that on a stout ship on which St Peter was carried with twenty-nine others, of whom fourteen were Christians and fifteen Jews, he so arranged their places, that when a storm arose, and it was decided to throw half of the passengers overboard, all the Christians were saved. The order was that every ninth man should be cast into the sea. How did he place the Christians and the Jews?
63. Farmer Southdown was the proud possessor of a prize cow, which had a fine calf every year for sixteen years. Each of these calves when two years old, and their calves also in their turn, followed this excellent example. How many head did they thus muster in sixteen years?
A shepherd was asked how many sheep he had in his flock. He replied that he could not say, but he knew that if he counted them by twos, by threes, by fours, by fives, or by sixes, there was always one over, but if he counted them by sevens, there was no remainder. What is the smallest number that will answer these conditions?
65. If a number of round bullets of equal size are arranged in rows one above another evenly graduated till a single bullet crowns the flat pyramid, how can their number be readily reckoned, however long the base line may be?
[II-127]
66.
[II-128]
A farmer sends five pieces of chain, of three links each, to be made into one continuous length. He agrees to pay a penny for each link cut, and a penny for each link joined. What was the blacksmith entitled to charge if he worked in the best interest of the farmer?
In a parcel of old silver and copper coins each silver piece is worth as many pence as there are copper coins, and each copper coin is worth as many pence as there are silver coins, and the whole is worth eighteen shillings. How many are there of each?
69. Take the natural numbers 1 to 11, inclusive, and arrange them in five groups, not using any of them more than once, so that these groups are equal. Any necessary signs or indices may be used.
70. John Bull passed one-sixth of his life in childhood and one-twelfth as a youth. When one-seventh of his life had elapsed he had a son who died at half his father’s age, and John himself lived on four years more. How old was he at the last?
71. There are two numbers under two thousand, such that if unity is added to each of them, or to the half of each, the result is in every case a square number. Can you find them?
A cheese in one scale of a balance with arms of unequal length seems to weigh 16 lbs. In the other scale it weighs but 9 lbs. What is its true weight?
[II-129]
73. Can you divide 100 into two such parts that if the larger is divided by the lesser the quotient is also 100?
I have marbles in my two side pockets. If I add one to those in the right-hand pocket, and multiply its increased contents by the number it held at first, and then deal in a similar way with those in the other pocket, the difference between the two results is 90. If, however, I multiply the sum of the two original quantities by the square of their difference, the result is 176. How many marbles had I at first in each pocket?
75. A friendly circle of twenty-one persons agreed to meet each week, five at a time, for an afternoon of bridge, so long as they could do so without forming exactly the same party on any two occasions.
As a central room had to be hired, it was important to have some idea as to the length of time for which they would require it. How long could they keep up their weekly meetings?
A herring and a half costs a penny and a half; what is the price of a dozen?
What sum of money is in any sense seen to be the double of itself?
78. At the close of his lecture upon unknown quantities, Dr Bulbous Roots, in playful mood, wrote this puzzle on his blackboard:—
[II-130]
Divide my fifth by my first and you have my fourth; subtract my first from my fifth and you have my second; multiply my first by my fourth followed by my second, and you have my third; place my second after my first and you have my third multiplied by my fourth. What am I?
79. If we can imagine the earth at a standstill for the purpose of our experiment, and if a perfectly straight tunnel could be bored through its centre from side to side, what would be the course of a cannon ball dropped into it from one end, under the action of gravity?
80.
A man, on the day of his marriage, made his will, leaving his money thus:—If a son should be born, two-thirds of the estate to that son and one-third to the widow. If a daughter should be born, two-thirds to the widow and one-third to that daughter. In the course of time twins were born, a boy and a girl. The man fell sick and died without making a fresh will. How ought his estate to be divided in justice to the widow, son, and daughter?
[II-131]
My carpet is 22 feet across. My stride, either backwards or forwards, is always 2 feet, and I make a stride every second. If I take three strides forwards and two backwards continuously until I cross the carpet, how long does it take me to reach the end of it?
83. A merchant at Lisbon has an urgent business call to New York. Taking these places to be, as they appear on a map of the world, on the same parallel of latitude, and at a distance measured along the parallel, of some 3600 miles, if the captain of a vessel chartered to go there sails along this parallel, will he be doing the best that he can for the impatient merchant?
84. Two schoolboys, John and Harry, start from the right angle of a triangular field, and run along its sides. John’s speed is to Harry’s as 13 is to 11.
They meet first in the middle of the opposite side, and again 32 yards from their starting point. How far was it round the field?
85. The following question is given and spelt exactly as it was contributed to a puzzle column by “John Hill, Gent.,” in 1760:—
“A vintner has 2 sorts of wine, viz. A and B, which if mixed in equal parts a flagon of mixed will cost 15 pence; but if they be mixed in a sesqui-alter proportion, as you should take two flagons of A as often as you take three of B, a flagon will cost 14 pence. Required the price of each wine singly.”
[II-132]
86. A man met a beggar and gave him half the money he had in his pocket, and a shilling besides. Meeting another he gave him half of what was left and two shillings, and to a third, he gave half of the remainder and three shillings. This left a shilling in his pocket. How much had he at first?
A young clerk wishes to start work at an office in the City on January 1st. He has two promising offers, one from A of £100 a year, with a yearly rise of £20, the other from B of £100 a year with a half-yearly rise of £5. Which should he accept, and why?
88. I have an abundance of florins and half-crowns, but no other coins. In how many different ways can I pay my tailor £11, 10s. without receiving change?
A monkey climbing up a greased pole ascends 3 feet and slips down 2 feet in alternate seconds till he reaches the top. If the pole is 60 feet high, how long does it take him to arrive there?
90. Old Adze, the village carpenter, who kept his tools in an open chest, found that his neighbours sometimes borrowed and forgot to return them.
To guard against this, he secured the lid of the chest with a letter lock, which carried six revolving rings, each engraved with twelve different letters. What are the chances against any one discovering the secret word formed by a letter on each ring, which will open the lock, and be the only key to the puzzle?
[II-133]
Five merry married couples happened to meet at a Swiss hotel, and one of the husbands laughingly proposed that they should dine together at a round table, with the ladies always in the same places so long as the men could seat themselves each between two ladies, but never next to his own wife. How long would their nights at the round table be continued under these conditions?
92. In calm water the tip of a stiff rush is 9 inches above the surface of a lake. As a steady wind rises it is gradually blown aslant, until at the distance of a yard it is submerged. Can you decide from these data the depth of the water in which the rush grows?
93.
94. A bag of nuts was to be divided thus among four boys:—Dick took a quarter, and finding that there was one over when he made the division, gave it to the parrot. Tom dealt in exactly the same way with the remainder, as did Jack and Harry in their turns, each finding one nut from the reduced shares to spare for the[II-134] parrot. The final remainder was equally divided among the boys, and again there was one for the bird. How many nuts, at the lowest estimate, did the bag contain?
Here is an easy one:—
What fraction of a pound, added to the same fraction of a shilling, and the same fraction of a penny, will make up exactly one pound?
97. “Now, boys!” said Dr Tripos, “I think of a number, add 3, divide by 2, add 8, multiply by 2, subtract 2, and thus arrive at twice the number I thought of.” What was it?
Two club friends, A and B, deposit similar stakes with C, and agree that whoever first wins three games at billiards shall take the whole of them. A wins two games and B wins one. Upon this they determine to divide the stakes in proper shares. How must this division be arranged?
Not so simple as it sounds is the following compact little problem:—If I run by motor from London to Brighton at 10 miles an hour, and return over the same course at 15 miles an hour, what is my average speed?
“I can divide my sheep,” says Farmer Hodge, who from his schooldays had a turn for figures, “into two unequal parts, so that the larger part added to the square of the smaller part shall be equal to the smaller part added to the square of the larger part.”
How many sheep had the farmer?
[II-135]
101. The following question was proposed in an old book of Mathematical Curiosities published more than a hundred years ago:—
“It often happens that if we take two horses, in every respect alike, yet, if both are put to the draught, that horse which is most loaded shall be capable of performing most work; so that the horse which carries the heavier weight can draw the larger load. How is this?”
In the king’s treasury were six chests. Two held sovereigns, two shillings, and two pence, in equal numbers of these coins. “Pay my guard,” said the king, “giving an equal share to each man, and three shares to the captain; give change if necessary.” “It may not be possible,” replied the treasurer, “and the captain may claim four shares.” “Tut, tut,” said the king, “it can be done whatever the amount of the treasure, and whether the captain has three shares or four.”
Was the king right? If so, how many men were there in the guard?
103. I bought a parcel of nuts at forty-nine for twopence. I divided it into two equal parts, one of which I sold at twenty-four, the other at twenty-five for a penny. I spent and received an integral number of pence, but bought the least possible number of nuts. How many did I buy? What did they cost? What did I gain?
104. My purse contained sovereigns and shillings. After I had spent half of its contents there were as many pounds left as I had shillings at first. With what sum did I start?
[II-136]
105. A lady was asked her age in a letter, and she replied by postcard thus:—
What was her age?
If cars run at uniform speed on the twopenny tube, from Shepherd’s Bush to the Bank at intervals of two minutes, how many shall I meet in half an hour if I am travelling from the Bank to Shepherd’s Bush?
107. What would it cost me to keep my word if I were to offer my greengrocer a farthing for every different group of ten apples he could select from a basket of a hundred apples?
If the minute-hand of a clock moves round in the opposite direction to the hour-hand, what will be the real time between three and four, when the hands are exactly together?
Two monkeys have stolen some filberts and some walnuts. As they begin their feast they see the owner of the garden coming with a stick. It will take him two and a half minutes to reach them. There are twice as many filberts as walnuts, and one monkey finishes the walnuts at the rate of fifteen a minute in four-fifths of the time and bolts. The other manages to finish the filberts just in time.
If the walnut monkey had stopped to help him till all was finished, when would they have got away if they ate filberts at equal rates?
[II-137]
A cashier, in payment for a cheque, gives by mistake pounds for shillings and shillings for pounds. The receiver spends half-a-crown, and then finds that he has twice as much as the cheque was worth. What was its value?
What five uneven figures can be added together so as to make up 14?
Three posts which vary in value are vacant in an office. In how many ways can the manager fill these up from seven clerks who apply for the appointments?
“It is now 5⁄11 of the time to midnight,” said the fasting man, who began his task at noon. What time was it?
114. If a clock takes six seconds to strike six how long will it take to strike eleven?
115. How would you arrange twenty horses in three stalls so as to have an odd number of horses in each stall?
Here is a pretty little problem, which has at any rate an Algebraic form, and is exceedingly ingenious:—
Given a, b, c, to find q.
117. Tom Evergreen was asked his age by some men at his club on his birthday in 1875. “The number of months,” he said, “that I have lived are exactly half as many as the number which denotes the year in which I was born.” How old was he?
[II-138]
Draw three circles of any size, and in any position, so long as they do not intersect, or lie one within another. How many different circles can be drawn touching all the three?
We have seen that the nine digits can be so dealt with, using each once, as to add up to 100. How can 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 be arranged so that they form a sum which is equal to 1?
How is it possible, by quite a simple method, to find the sum of the first fifty numbers without actually adding them together?
Two tram-cars, A and B, start at the same time. A runs into a “lie by” in four minutes, and waits there five minutes, when B meets and passes it. Both complete the whole course at the same moment. In what time can A complete it without a rest?
122. Take 10, double it, deduct 10, and tell me what remains.
The average weight of the Oxford crew is increased by 2 lbs., when one of them, who weighs 12 stone, is replaced by a fresh man. What is the fresh man’s weight?
124. A motor car is twice as old as its tyres were when it was as old as its tyres are. When these tyres are as old as the car is now, the united[II-139] ages of car and tyres will be two years and a quarter. What are their respective ages now?
A and B on the edge of a desert can each carry provisions for himself for twelve days. How far into the desert can an advance be made, so that neither of them misses a day’s food?
A bottle of medicine and its cork cost half-a-crown, but the bottle and the medicine cost two shillings and a penny more than the cork. What did the cork cost?
127. A boat’s crew are afloat far from land with no sail or oars. How can they, without making any use of wind or stream, and without any outside help, regain the shore by means of a coil of rope which happens to be at hand.
What is the largest sum in silver that I can have in my pockets without being able to give change for a half-sovereign.
I have apples in a basket. Without cutting an apple I give half of the number and half an apple to one person; half of what then remains and half an apple to another, and half of what are still left and half an apple to a third. One apple now remains in the basket. How many were there at first?
130.
[II-140]
A motor goes 9 miles an hour uphill, 18 miles an hour downhill, and 12 miles an hour on the level. How long will it take to run 50 miles and return at once over the same course?
In firing at a mark A hits it in two out of three shots, B in three out of four, and C in four out of five. The mark was hit 931 times. If each fired the same number of shots, how many hits did each make, and how many shots were fired?
If a cat and a dog, evenly matched in speed, run a race out and back over a course 75 yards in all, and the dog always takes 5 feet at a bound and the cat 3 feet, which will win?
134. In a fog a man caught up a wagon going in the same direction at 3 miles an hour. If the wagon was just visible to him at a distance of 55 yards, and he could see it for five minutes, at how many miles an hour was he walking?
Three horses start in a race. In how many different ways can they be placed by the judge?
136. The New Zealanders, winning a match against Oxbridge, scored 34 points, from tries and tries converted into goals.
If every try had been converted they would have made four-fifths of the maximum which a score of 34 points from tries and goals can yield.
What is this maximum, and what was their actual score?
[II-141]
What is the smallest number, of which the alternate figures are cyphers, that is divisible by 9 and by 11?
Here is an interesting little problem:—A, with 8d. in his hand, meets B and C, who have five and three loaves respectively. In hungry mood they all agree to share the loaves equally, and to divide the money fairly between B and C. How much does each receive?
139. When four money-boxes, containing pennies only, were opened and counted, it was found that the number in the first with half those in all the others, in the second with a third of all the others, in the third with a fourth of all the others, and in the fourth with a fifth of all the others, amounted in each case to 740. How much money did the boxes contain, and how was it divided?
Two steamers start together to make a trip to a far-off buoy and back. Steamer A runs all the time at 10 miles an hour. Steamer B does the passage out at 8 miles an hour, and the return at 12 miles. Will they regain port together?
A golf player has two clubs mended in London. One has a new head, the other a new leather face. The head costs four times as much as the face. At St Andrews it costs five times as much, and the leather face at St Andrews is half the London price. Including a shilling for a ball he pays twice the St Andrews charges for these repairs. What is the London charge for each?
[II-142]
142. Two children were asked to give the total number of animals in a pasture, where sheep and cattle were grazing. They were told the numbers of sheep and of cattle, but one subtracted, and gave 100 as the answer, and the other arrived at 11,900 by multiplication. What was the correct total?
143. Fifty-two stones are placed at intervals along a straight road. The distance between the first and the second is 1 yard, between the second and the third it is 3 yards, between the next two 5 yards, and so on, the intervals increasing each time by 2 yards.
How far would a tramp have to travel to earn five shillings promised to him when he had brought them one by one to a basket placed at the first stone?
On a division in the House of Commons, if the Ayes had been increased by fifty from the Noes, the motion would have been carried by five to three. If the Noes had received sixty votes from the Ayes, it would have been lost by four to three. Did the motion succeed? How many voted?
145. How many positions are there on the face of a watch in which the places of the hour and minute-hands can be interchanged so as still to indicate a possible time?
146. In a cricket match the scores in each successive innings are a quarter less than in the preceding innings. The match was played out, and the side that went in first won by fifty runs. What was the complete score?
[II-143]
147. A boy throws a cricket ball vertically upwards, and catches it as it falls just five seconds later. How high from his hands does the ball go?
148. It may be said of a section of the gigantic carpet at Olympia that had it been 5 feet broader and 4 feet longer it would have contained 116 more feet; but if 4 feet broader and 5 longer the increase would have been but 113 feet. What were its actual breadth and length?
In estimating the cost of a hundred similar articles, the mistake was made of reading pounds for shillings and shillings for pence in each case, and under these conditions the estimated cost was £212 18s. 4d. in excess of the real cost. What was the true cost of the articles?
150. The square of the number of my house is equal to the difference of the squares of the numbers of my next door neighbour’s houses on either side.
My brother, who lives in the next street, can say the same of the number of his house, though his number is not the same as mine. How are our houses numbered?
Two men of unequal strength are set to move a block of marble which weighs 270 lbs., using for the purpose a light plank 6 feet long. The stronger man can carry 180 lbs. How must the block be placed so as to allow him just that share of the weight?
[II-144]
A man has twenty coins, of which some are shillings and the rest half-crowns. If he were to change the half-crowns for sixpences and the shillings for pence he would have 156 coins. How many shillings has he?
153. Some coins are placed at equal distances apart on a table, so that they form the sides of an equilateral triangle.
From the middle of each side as many are then taken as equal the square root of the number on that side, and placed on the opposite corner coin. The number of coins on each side is then to the original number as 5 is to 4. How many coins are there in all?
154. A gardener, wishing to fence round a piece of ground with some light posts, found that if he set them a foot apart there would be 150 too few, but if placed a yard apart there would be 70 to spare. How many posts had he?
A gives B £100 to buy 100 animals, which must be cows at £5 each, sheep at £1, and geese at 1s. How many of each sort can he buy?
John is twice as old as Mary was when he was as old as Mary is. John is now twenty-one. How old is Mary?
In a cricket match A made 35 runs; C and D made respectively half and one-third as many as B, and B’s score was as much below A’s as C’s was above D’s. What did B, C, and D each score?
[II-145]
158. What is the least number which, divided by 2, 3, 4, 5, 6, 7, 8, 9, or 10, leaves respectively as remainders 1, 2, 3, 4, 5, 6, 7, 8, and 9?
159. A square table stands on four legs, which are set at the middle point of its sides. What is the greatest weight that this table can uphold upon one of its corners?
160. Well pleased with the inspector’s report, the rector of a country parish came into his school with 99 new pennies in his pocket, and said that he would give them to the five boys in Standard VII. if they could, within an hour, show him how to divide them so that the first share should exceed the second by 3, be less than the third by 10, be greater than the fourth by 9, and less than the fifth by 16. What was the answer which would satisfy these conditions?
161. Some Indian raiders carried off a third of a flock of sheep, and a third of a sheep. Another party took a fourth of what remained, and a fourth of a sheep. Others took a fifth of the rest and three-fifths of a sheep. What was the number of the full flock, if there were then 409 left?
Three boys begin to fill a cistern. A brings a pint at the end of every three minutes, B a quart every five minutes, and C a gallon every seven minutes. If the cistern holds fifty-three gallons, in what time will it be filled, and who will pour in the last contribution?
[II-146]
163. A man late in the last century said that his age was the square root of the year in which he was born. In what year did he say this?
164. A dealer in Eastern curios sold a Satzuma vase for £119, and on calculation found that the number which expressed his profit per cent. expressed also the cost price in pounds of the vase. What was this number?
What is the chance of throwing at least one ace in a single throw with a pair of dice?
A thief starts running from a country house as fast as he can. Four minutes later a policeman starts in pursuit. If both run straight along the road, and the policeman gets over the ground one-third faster than the thief, how soon will he catch him?
Twenty-seven articles are exposed for sale on one of the stalls of a bazaar. What choice has a purchaser?
168. “How old are you, dad?” said Nellie on her birthday, as her father gave her as many shillings as she was years old. His answer was quite a puzzle for a time, but with the help of her schoolfellows Nellie worked it out.
This is what he said:—
How old was Nellie, and how old was her dad?
[II-147]
This Magic Cocoon is so cleverly spun that the word can be traced and read in many ways.
N | ||||||||||
N | O | N | ||||||||
N | O | O | O | N | ||||||
N | O | O | C | O | O | N | ||||
N | O | O | C | O | C | O | O | N | ||
N | O | O | C | O | C | O | C | O | O | N |
N | O | O | C | O | C | O | O | N | ||
N | O | O | C | O | O | N | ||||
N | O | O | O | N | ||||||
N | O | N | ||||||||
N |
How many readings can you discover starting from one or other of the Cs, and passing up and down or sideways, but not diagonally, and never over the same letter twice in a reading? There are 756!
The Chronogram, severely classed by Addison as “a species of false wit” is a sentence in which the salient letters represent in Roman numerals some particular year. A good English specimen is this: “My Day Closed Is In Immortality.” The capital letters in these words give MDCIII., or 1603, the year in which Queen Elizabeth died.
[II-148]
The battle-cry at Montlhéry in 1465 was:—“à CheVaL, à CheVaL, gendarMes, à CheVaL!” Taking the letters printed in capitals—
M | = | 1000 |
CCC | = | 300 |
LLL | = | 150 |
VVV | = | 15 |
we have the date of the battle | 1465 |
This curious inscription is placed over the organ at Ober Ammergau. Add together its Roman numerals and they give the date at which the organ was dedicated. The English of it is:—
May those who sing the praises of Christ be by virtue of His Sacred Passion one in The Father and in Himself.
On a damaged inscription to Bishop Berkeley in Winchester Cathedral are the words—VIXI, LVXI—I have lived, I have shone. Added together in their values as Roman numerals the letters of these two words give his age exactly at his death—eighty-three.
[II-149]
On the return of the C.I.V. from the Boer War a prize was offered by Truth for the best motto appropriate to them. This was to consist of three words of which the first must begin with C the second with I and the third with V.
The prize was taken by the following Latin motto which is singularly happy both in construction and in meaning:—
CIVI | IVI | VICI |
I roused | I went | I won. |
The sequence of events is perfect; no letters but C.I.V. are used and the motto is a palindrome if read by syllables.
As in olden days some of the Psalms and other writings were constructed in acrostic form, so in the Middle Ages even serious writers would juggle with letters, as though they felt that such tricky methods were an aid to memory.
It was in this spirit that Guido Aretino, a Benedictine monk of Tuscany in 1204, gave names to the notes used in the musical scale from the first syllables of the lines of a Latin hymn. “Ut” is still used in France, though we and the Italians have substituted “do.”
UT queant laxis | REsonare fibris, |
MIra gestorum | FAmuli tuorum, |
SOLve polutis | LAbii reatis |
O Pater alme! |
Many of us know that there is a long verse in the Book of Ezra in which all the letters of the[II-150] alphabet are used, taking “j” as “i” (Ezra vii., v. 21).
This very curious coincidence also occurs in a comparatively short sentence in “The Beth Book,” by Sarah Grand:—“It was an exquisitely deep blue just then, with filmy white clouds drawn up over it like gauze;” and here “j” is itself in evidence.
Schopenhauer, the famous German philosopher, who was a confirmed bachelor and misogynist, was compelled while living at Frankfort to support an old lady who had been crippled by his violence. When her death came as a welcome relief to him, he composed the following clever epitaph:—
which by the interchange of two letters pictured the position. It may be freely rendered:—
The following clever composition, which appeared in the pages of Truth, contains a double sequence of words, which increase a letter at a time, the same letters appearing in varied order until at last “o” culminates in thornless, and “a” in restrainest. It is quite a remarkable tour-de-force.
During the Reign of Terror, France and her people and position were thus alphabetically described:—
Le peuple Français | A B C. | (abaissé). |
La gloire nationale | F A C. | (effacée). |
Les places fortes | O Q P. | (occupées). |
Quarante trois députés | C D. | (cédés). |
L’armée | D P C. | (dépaysée). |
Les ministres | A J. | (agés). |
La liberté | O T. | (ôtée). |
La charte | L U D. | (éludée). |
This elaborate method of piling up no less than seven consecutive “thats,” so that they make tolerable sense, was told to his boys during school-time by Dr Moberly, then headmaster of Winchester, and afterwards Bishop of Salisbury, just fifty years ago:—
I saw that C saw.
C saw that that I saw.
I saw that that that C saw was so.
C saw that, that that that I saw was so.
I saw that, that that that that C saw was so.
C saw that that, that that that that I saw was so.
I saw that that, that that that that that C saw was so.
[II-152]
If the Roman ladies and children, at their equivalent for Christmas, amused themselves by acting verbal charades, an excellent word was at their disposal, “sustineamus”—“let us endure,” which can be broken up exactly into sus, tinea, mus—a sow, a moth, a mouse.
1. Can you complete this word square, so that its four words read alike from top to bottom and from left to right?
* | E | * | * |
E | * | * | * |
* | * | * | E |
* | * | E | * |
2. Can you fill in this word square?
C | * | * | C | * | E |
* | N | U | * | E | S |
* | U | * | E | S | * |
C | * | E | * | S | * |
* | E | S | * | * | E |
E | * | T | E | * | * |
3. In this sentence, when complete,
So * * * * AG * * * * LATI * * * * X * * * * ITH
each group of four missing letters contains two pairs of letters which are alike. Can you on these lines complete the sentence?
[II-153]
Here is a similar sentence by way of illustration:
T * * * * M * * * * TERTAIN * * * * MUND,
which becomes when filled in—
Two women entertained Edmund.
4. Can you complete this word square by substituting letters for the dots?
W | * | * | * | E |
* | * | T | * | * |
* | T | O | N | * |
* | * | N | * | * |
E | * | * | * | T |
5. What word can be made with these?
L S D U D O D U D.
A lovelorn youth consulted a married lady on his condition, and was asked by her on a slip of paper:—
“Loruve?”
When he had deciphered this, and had answered in the affirmative, she handed to him another slip, on which this advice was written:—
L | ||||
“Prove | A | F | and ensure success.” | |
D |
What did it all mean?
7.
8. Can you complete this word square?
* | M | * | N | * | S |
M | * | N | * | O | * |
* | N | * | B | * | E |
N | * | B | * | L | * |
* | O | * | L | * | R |
S | * | E | * | R | * |
9. A spruce young Frenchman at a fête consulted a modern oracle as to how he could best please the ladies. This was the mystic response:—
MEC DO BIC.
Can you interpret it?
10. In our young days we have often wrestled with vulgar fractions, but apart from Algebra we have had no serious concern with any in which letters take the place of figures. A specimen of this sort, not known to science, is the following curiosity:—
m ot y = mo.
[II-155]
The puzzle in Truth was recently founded upon “ourang-outang,” which had been cleverly buried. We will give a few of the best results. This is one:—
Another is:—
What animals are buried in these lines?
12.
13. There is an English word of thirteen letters in which the same vowel occurs four times, the same consonant six times, another consonant twice, and another once. Can you hit upon it?
14. Though brevity is said to be the soul of wit, we are too often flooded nowadays with a superabundance of words.
Here is an attempt at modest condensation. A familiar English proverb is quite clearly expressed to the solver’s seeing eyes in this brief phrase:—
WE IS DO
What is the proverb?
[II-156]
15. Can you complete this word square?
W | * | * | * | * | S |
* | R | * | * | R | * |
* | * | O | R | * | * |
* | * | R | M | * | * |
* | R | * | * | N | * |
S | * | * | * | * | M |
16. The following puzzle lines are attributed to Dr Whewell:—
O | O | N | O | O. | ||||||
U | O | A | O | O | I | O | U | |||
O | N | O | O | O | O | M | E | T | O | O. |
U | O | A | O | I | D | O | S | O | ||
I | O | N | O | O | I | O | U | T | O | O! |
17. Can you fill in the vacancies in this diamond?
P | ||||||||
F | O | * | ||||||
C | * | R | * | * | ||||
F | * | * | C | * | * | * | ||
P | O | R | C | E | L | A | I | N |
R | * | * | L | * | * | * | ||
S | * | A | * | * | ||||
S | I | * | ||||||
N |
Its words must read alike from left to right and from top to bottom.
[II-157]
18.
Tan HE Edsa VEN in
It N Gja SmeTs AsgN
aD Az Rett De.
19. I can travel first-class on the Great Eastern Railway from 2 2 2 2 2 2 2 2 4 4 4 4 4 5 0 0. What is the cost of my journey, and its length in time?
20.
Can you decipher it?
21. I wrote the following note recently:—
Dear Jack,—Meet me at Simpson’s to-morrow at 1.30. We will sample their excellent Irish stew. Here are some catchwords that will remind you of the invitation:—
Join me at and
Join me at ai
Join me at as
Why should they remind him of it?
22. This was the exact text of a letter sent to the master of an English village school by a labourer as an excuse for his boy’s absence:—
“Cepatomtogoatatrin”
Can you decipher it?
[II-158]
23. This double Acrostic will afford an easy exercise in mental gymnastics for those to whom such pastime appeals:—
1. More fit for babes and sucklings than for you.
2. Robbed of externals this is very true.
3. Diminutive in measure and in weight.
4. Pen-name of one a true pen potentate.
5. A palindrome quite plain is here in sight.
6. Sans head and tail it also yields this light.
7. Here is in short what anyone may write.
24. | c | e | f | h | i | m | n | o | r | s | t | v | y |
3 | 2 | 2 | 2 | 7 | 1 | 1 | 2 | 6 | 5 | 8 | 3 | 9 | |
4 | 4 | 1 | 2 | 1 | 6 | 1 | |||||||
3 | 1 | 5 | 8 | 2 | 3 | ||||||||
5 | 7 | 9 | 6 | ||||||||||
4 |
The letters with ones under them are the first letters of words, those with twos under them are second letters of words, and so on.
25. Having occasion to make a few slight additions to my will, I called in my lawyer to arrange the matter. How far forward did the instructions contained in the following lines carry him in his work?
[II-159]
26. Can you complete this word square?
* | D | * | * | O | * |
D | * | * | I | * | E |
* | S | * | A | * | D |
T | * | A | * | A | * |
* | R | * | A | * | E |
R | * | D | * | E | * |
27. Over the grave of a French musician, who was choked by a fish bone, the following epitaph was inscribed in notes of music:—A. G. A. E. A.
Over the porch of the house of Gustave Doré these musical notes were placed on a tablet:—C. E. B. A. C. D.
What do these inscriptions signify?
28. “Where can we meet to-morrow?” said Jack Spooner to his best girl.
“We will go,” she replied, “at 222222222222 LEY STREET.”
When and where did they meet?
29. What does this spell?
CT T T T T T T T T T
[II-160]
30. What English word is it which may be so treated as to affirm or disallow the use of its own initial or final letter?
31. Can you arrange these letters
E I O O O U
B C N N R R S S
so that they form the title of a book well-known to boys?
32. Keeping these letters in their present order make a sensible sentence by inserting among them as often as is necessary another letter, which must be in every case the same.
A DEN I I CAN DOCK.
33. Here is a well-known quotation from Shakespeare, which seems to need some straightening out:—
OXXU8 MAAULGIHCTE
NOR
34. Here, as an awful warning to those who are ready to accept the definition of English spelling given by a former headmaster of Winchester—“Consonants are interchangeable, and vowels do not count”—is a common English word of twelve letters, in “linked sweetness long drawn out.”
Iewkngheaurrhphthewempeighghtips.
Can you decipher it?
[II-161]
35. Can you, by filling in letters, complete this word square so that it shall read alike across and from top to bottom?
* | A | * | * |
A | * | * | A |
* | E | * | * |
* | A | * | E |
36. The following curious inscription may be seen on a card hanging up in the bar of an old riverside inn in Norfolk:—
THEM * ILL * ERSLEA * VET * HEMI
LLT * HEW * HER * RYMEN * LOW
ERTH * EIRS * AILTH * EMA
LTS * TER * SLE * AVET * HE * KI
LN * FORAD * ROPO * FTH
EWHI * TESW * AN * SALE.
Can you decipher it?
37.
In this printer’s pie the words are in their proper sequence, but the letters are tangled.
38. In the following short sentences five names of places are buried—that is to say, the letters which spell them in proper order form parts of[II-162] more words than one. Thus, for example “Paris” might be buried in the words “go up a rise:”
“The men could ride all on donkeys, the skipper, though, came to a bad end.”
When you have discovered these places, try to find out what very unexpected word of more than four letters is buried in the sentence, “On Christmas Eve you rang out angel peals.”
39. According to an old poet, Sir John Harrington (1561-1612):—
The classic lines may possibly have been the germ of the flippant modern riddle, “Why is it no offence to conspire in the evening?”
40.
41. The following letters, if they are properly rearranged, will fall into the words which form a popular proverb:—
A A E E G G H I L L M N N N O O O O R R S S S S T T
Can you place them in position?
42. Can you fill in the gaps of this proverb?
E**t* *e*s**s *a*e *h* *o** **i*e.
[II-163]
43. There is an English word of five syllables which has only eight letters, five of them vowels—an a, an e, twice i, and y. What are its consonants?
44. Can you turn TORMENT to RAPTURE, using four links, changing only one letter each time, and varying the order of the letters?
45. Can you arrange these letters so that they form a sentence of five words?
a a c e e e f f h h i i i i i m n n o o o p r r s s t t t t t.
The result is a well-known English proverb.
46. Add one letter, and make this into a sensible English sentence:—
G D L D P R T F R R T H D X X F R D D N S
47.
Can you form an English word with these letters?
A A A A A B B N N I I R S S T T.
What is this? It is found in Shakespeare:—
K I N I.
50. There are two English words which contain each of them ten letters, and six of these are a, b, c, d, e, f, the first six letters of the alphabet. Can you build up either or both of them without looking at the solution?
[II-164]
51.
52. The prodigal son of a wealthy colonial farmer received a letter from his father, to suggest that a considerable part of his inheritance should be safeguarded before he squandered it. His reply ran thus:—“Dear dad, keep 1000050.” As such a sum, even in dollars, was out of the question, the father was completely puzzled.
What did the prodigal mean?
53. The names of eight famous British poets are buried in these lines, that is to say, the letters that spell the names form in their proper order parts of different words:—
Can you dig them up?
54. When A. B. gave up the reins of government, and C. B. took office in his place, it was found that their political positions could be exactly described by two quite common English verbs, which differ only in this, that the one is longer by one letter than the other, while the rest of the letters are the same, and in the same order. What are these two verbs?
55. The following is a prize Rebus:—
done
mutt
and
i
you make me
a glutt
T. c. d.
56.
57.
[II-166]
T S.
58. What English word do these two letters indicate? There are two possible solutions of equal merit.
59. How can we read this?
I N X I N X I N.
60.
IFS
[II-167]
Black has made the false move Kt from Q sq to Kt 3. When this is replaced, and the king is moved as the proper penalty, White mates at once with one or other of the Knights.
Replace the White Kt at B 7, and a Black Pawn at K 4; then P takes P en pas. Mate.
It can be proved that Black’s last move must have been P from K 2 to K 4, so that White may take the P en pas.
The Black King cannot have moved from any occupied square.
(The White Kt now occupies B 7.)
Nor from Kt 3 or 4, as both are now doubly guarded, so that he cannot have moved out of a check.
(The White Kt now helps to guard Kt 5.)
Nor can he have moved from K 2, as the White P on Q 6 cannot have moved to give check.
No other P can have moved.
The K P cannot have moved from K 3, became of the position of the White King.
Therefore Black’s last move must have been P from K 2 to K 4, which White can take en pas giving Mate.
[II-168]
B—Q 2P—R 7 B—R 5P—R 7 becomes Q P—Kt 4any White hasno move.
The way in which the B runs to earth and is shut in is most ingenious. Black with the new Q cannot anyhow give White a move.
R—Kt 7, ch.K moves R—Kt 5P becomes Q R—B 5, ch.Q × R, stalemate.
B—Kt 8.
B—R 4.
B—R sq.
B—Q 4.
B—B sq.
K—R 4.
Kt—Kt’s 6.
R—Kt 5Kt × R Kt—B 6Kt—B 6 ch. Kt × Kt mate
Kt—R 7B moves Q—KB 8B returns Q—R 8 mate.
Any other move of the Kt would impede the movements of the Q.
R—R sq.B moves. Q—Kt sq.B returns. Q to Kt sq. mate.
[II-169]
This beautiful problem is solved by:—
Q—Kt 6P × Q K—B 2any mates accordingly.
or
Kt—K 3 R—B 3any mates accordingly.
R—R 2.B × Kt Q—R sq.any Q mates.
if
B—Q sq. Kt—QB 8,any Q or Kt mates.
if
B elsewhere Kt—QB 6,any Q or Kt mates.
Kt—Kt 4, dis. ch.K—R 8. Q—KR 2, ch.P × Q. Kt—B 2, mate.
There are other variations.
B—Kt sq.P × Kt, Q—QR7,K × Kt. Q mates.
If K × Kt, Q × P, and mates next move.
K—Q 7,K moves R—Q 5,K × R Q mates.
R—Q 8K moves Q × P, ch.K × Q B mates.
if
B moves Q—K 7any Q mates.
[II-170]
B—B 6K × R Q—Q 7, ch.K × Q R mates.
if
B × R R—B 6, ch.K × P Q mates.
There are other variations.
Q—R 8Kt × Q Kt—B 6any mates accordingly.
B—Kt 8B—K Kt 2 Q × B, ch.Kt—K 4 Q—QR 7, mate.
if
B—B 3 Q—Q 2, ch.K moves P mates.
B—Kt 2K—K 4 Q—K 3 ch.any mates.
There are other variations.
Q—KR 2K—B 3 or B4 Q—Q 6, ch.Q × Q Kt—K 5. double ch. mate.
There are other variations.
R—QR sq.P moves R—R 2P × R P mates.
[II-171]
Q—B sq.P—K 7 Q × BP ch.K—Q 3 Q mates.
if
K—Q 2 Q × BP ch.K—B 3 Q mates.
There are other variations.
B—R 8K—R 2 Q—QR sq.K moves Q—Q Kt. 7, mate.
Q—R 5B × Q or B—B 2 Kt—Kt 5any Kt mates.
K—Kt 7Kt—B 3 Q—Q 5, ch.Kt × Q Kt. mates.
if
P—K 3 Q—B 8, ch.K moves Q mates.
R—Kt 6P moves B—Kt 4P × B R × P mate.
Kt from R 3—Kt 5P × Kt B—B 4P × B P—Q 4 ch.P × P en pas R—B 5 mate.
if
R × B R—Kt 5 ch.any mates accordingly.
and if
Q—K 6 Kt—Q 6Q—Kt 3 R—B 5 ch.Q × R Kt—B 7 mate.
[II-172]
The arrow head at the top of a small wheel with ten teeth, which is geared into and revolved round a large fixed wheel with forty teeth, will point directly upwards five times in its course round the large wheel. Four of these turnings are due to the rotation of the small wheel on its own axis, and one of them results from its revolution round the large wheel.
It is possible to pass over all the bridges which connect the islands A and B and the banks of the surrounding river without going over any of them twice.
The course can be shown thus, using capital letters for the different regions of land, and italics for the bridges:—Ea Fb Bc Fd Ae Ff Cg Ah Ci Dk Am En Ap Bq ElD.
This order of the bridges can, of course, be reversed.
In order that a spaniel starting from the middle of a circular pond, and going at the same pace as a duck that is swimming round its edge, shall be sure to catch it speedily, the dog must always keep in the straight line between the duck and the centre of the pond.
The duck can never gain an advantage by turning back, and if it swims on continuously in a circle it will be overtaken when it has passed through a quarter of the circumference, for the dog will in the same time have described a semi-circle whose diameter is the radius of the pond, ending at the point where the duck is caught.
[II-173]
When a bird tethered by a cord 50 feet long to a post 6 inches in diameter uncoils the full length of the cord, and recoils it in the opposite direction, keeping it always taut, it flies 10,157 feet, or very nearly 2 miles, in its double course.
To avoid possible misunderstanding, we point out that, in order to pass from the uncoiling to the recoiling position, the bird must fly through a semicircle at the end of the fully extended cord.
When a fly, starting from the point A, just outside the revolving disc, and always making straight for its mate at the point B, crosses the disc in four minutes, during which time the disc[II-174] is turning twice, the revolution of the disc has a most curious and interesting effect on the path of the fly.
The fly is a quarter of a minute in passing from the outside circle to the next, during which the disc has made an eighth of a revolution, and the fly has reached the point marked 1. The succeeding points up to 16 show the position of the fly at each quarter of a minute, until, by a prettily repeated curve, B is reached.
The following method enables the engine R to interchange the positions of the wagons, P and Q, for either of which there is room on the straight rails at A, while there is not room there for the engine, which, if it runs up either siding, must return the same way:—
1. R pushes P into A. 2. R returns, pushes Q up to P in A, couples Q to P, draws them both out to F, and then pushes them to E. 3. P is now uncoupled, R takes Q back to A, and leaves it there. 4. R returns to P, pulls P back to C, and leaves it there. 5. R, running successively through F, D, B, comes to A, draws Q out, and leaves it at B.
It is quite puzzling to decide how many similar triangles or pyramids are expressed on the seal of Pharaoh. There are in fact 96.
The four persons who started at noon from the central fountain, and walked round the four[II-175] paths at the rates of two, three, four, and five miles an hour would meet for the third time at their starting point at one o’clock, if the distance on each track was one-third of a mile.
This diagram shows how to divide Fig. A into two parts, and so rearrange these that they form either Fig. B or Fig. C, without turning either of the pieces.
Cut the five steps, and shift the two pieces as is shown.
The Broken Octagon is repaired and made perfect if its pieces are put together thus:—
[II-176]
The pond was doubled in size without disturbing the duck-houses, thus:—
This is a perfect arrangement:—
The pins may be placed thus:—
On the third dot in the top line; on the sixth[II-177] dot in the second line; on the second dot in the third line; on the fifth dot in the fourth line; on the first dot in the fifth line; on the fourth dot in the sixth line.
To trace this course draw lines upon the diagram from square 46 to squares 38, 52, 55, 23, 58, 64, 8, 57, 1, 7, 42, 10, 13, 27, and 19. This gives fifteen lines which pass through every square only once.
Make a square with three on every side, and place the remaining four one on each of the corner men or buttons.
[II-178]
The figure given is thus divided into four equal and similar parts:—
A very simple rule of thumb method for striking the points in the sides of a square, which will[II-179] be at the angles of an octagon formed by cutting off equal corners of the square, is to place another square of equal size upon the original one, so that the centre is common to both, and the diagonal of the new square lies upon a diameter of the other parallel to its side.
The subjoined diagram shows how the two oblongs, applied to the two concentric squares, produce 31 perfect squares, namely, 17 small ones, one equal to 25 of these, 5 equal to 9, and 8 equal to 4.
The Greek Cross can be divided by two straight cuts, so that the resulting pieces will form a[II-180] perfect square when re-set, as is shown in these figures:—
The diagram which is given below shows how the irregular Maltese Cross can be divided by two straight cuts into four pieces, which form when properly rearranged, a perfect square.
The following diagram shows by its dark lines how the whole square can be cut into four pieces, and these arranged as two perfect squares in which every semicircle still occupies the upper half of its cell.
One piece forms a square of nine cells, and it[II-181] is easy to arrange the other three pieces in a square of sixteen cells by lifting the three cells and dropping the two.
It will be seen, on the subjoined diagram, how[II-182] twenty-one counters or coins can be placed on the figure so that they fall into symmetrical design, and form thirty rows, with three in each row.
In order that a square and an additional quarter may be divided by two straight lines so that their parts, separated and then reunited, form a perfect square, lines must be drawn from the point A to the corners B and C. Draw the figure on paper, cut through these lines, and you will find that the pieces can be so reunited that they form a perfect square.
The diagram below shows how the seven parts of the square can be rearranged so that they form the figure 8.
[II-183]
Here is an oblong formed by piecing together two of the smaller triangles, and four of each of the other patterns—
Here is another:—
This diagram shows how every indication of the seventeen squares is broken up by the removal[II-184] of seven of the asterisks which mark their corners.
Those surrounded by circles are to be removed.
The dotted lines on the triangular figure show[II-185] how a piece of cardboard cut to the shape of Fig. 1 can be divided into three pieces, and rearranged so that these form a star shaped as in Fig. 2.
To solve this puzzle slip the first coin or counter from A to D, then the others in turn from F to A, from C to F, from H to C, from E to H, from B to E, from G to B, and place the last on G. It can only be done by a sequence of this sort, in which each starting point is the finish of the next move.
The carpenter cleverly contrived to mend a hole 2 feet wide and 12 feet long, by cutting the board which was 3 feet wide and 8 feet long, as[II-186] is shown in Fig. 1, and putting the two pieces together as is shown in Fig. 2.
Here is another solution:—
1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 17 | 19 |
39 | 37 | 35 | 33 | 31 | 29 | 27 | 25 | 23 | 21 |
2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
40 | 38 | 36 | 34 | 32 | 30 | 28 | 26 | 24 | 22 |
82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 82 |
I was able to find my way in a strange district, when the sign-post lay uprooted in the ditch, without any difficulty. I simply replaced the post in its hole, so that the proper arm, with its lettering, pointed the way that I had come, and then, of necessity, the directions of the other arms were correct.
The train was whistling for 5 minutes. Sound travels about a mile in 5 seconds, so the first I heard of it was 5 seconds after it began. Its last sound reached me 71⁄2 seconds after it ceased, so I heard the whistle for 5 minutes, 21⁄2 seconds.
These quarters were not so elastic as they are made to appear. In good truth, considering that the second man who was placed in A was afterwards removed to I, no real second man was provided for at all.
[II-187]
The first day of a new century can never be Sunday, Wednesday, or Friday. The cycle of the Gregorian calendar is completed in 400 years, after which all dates repeat themselves.
As in this cycle there are only four first days of a century, it is clear that three of the seven days of the week must be excluded. Any perpetual calendar shows that the four which do occur are Monday, Tuesday, Thursday, and Saturday, so that Sunday, Wednesday, and Friday are shut out.
A neat corollary to this proof is that Monday is the only day which may be the first, or which may be the last, day of a century.
A cricket bat with spliced handle has such good driving power, because the elasticity of the handle allows the ball to be in contact with the blade of the bat for a longer time than would otherwise be possible.
With similar effect the “follow through” of the club head at golf maintains contact with the ball, when it is already travelling fast.
When two volumes stand in proper order on my bookshelf, each 2 inches thick over all, with covers 1⁄8 of an inch in thickness, a bookworm would only have to bore 1⁄4 of an inch, to penetrate from the first page of Vol. I, to the last page of Vol. II, for these pages would be in actual contact if there was no binding. This very pretty and puzzling question combines in its solution all the best qualities of a clever catch with solid and simple facts.
A man would have to fall from a height of nearly 15 miles to reach earth before the sound of his cry as he started. The velocity of sound is constant, while that of a falling body is continually accelerated. At first the cry far outstrips[II-188] the falling man, but he overtakes and passes through his own scream in about 141⁄2 miles, for his body falls through the 15 miles in 70 seconds, and sound travels as far in 72 seconds. Air resistance, and the fact that sound cannot pass from a rare to a dense atmosphere, are disregarded in this curious calculation.
A man on a perfectly smooth table in a vacuum, and where there was no friction, though no contortions of his body would avail to get away from this position, could escape from the predicament by throwing from him something which he could detach from his person, such as his watch or coat. He would himself instantly slide off in the opposite direction!
The monkey clinging to one end of a rope that passes over a single fixed pulley, while an equal weight hangs on the other end, cannot climb up the rope, or rise any higher from the ground.
If he continues to try to climb up, he will gradually pull the balancing weight on the other end of the rope upwards, and the slack of the rope will drop below him, while he remains in the same place.
If, after some efforts, he rests, he will sink lower and lower, until the weight reaches the pulley, because of the extra weight of rope on his side, if friction is disregarded.
Though the tension on a pair of traces tends as much to pull the horse backward as it does to pull the carriage forward, it is the initial pull from slack to taut which sets the traces in motion; and this, once started, must continue indefinitely until checked by a counter pull.
Some say that a rubber tyre leaves a double[II-189] rut in dust and a single one in mud, because the air, rushing from each side into the wake of the wheel, piles up the loose dust. Others hold that the central ridge is caused by the continuous contraction of the tyre as it passes its point of contact with the road.
A correspondent, writing some years ago to “Knowledge,” said:—“It is our old friend the sucker. The tyre being round, the weight on centre of track only is great enough to enable the tyre to draw up a ridge of dust after it.”
If two cats on a sloping roof are on the point of slipping off, one might think that whichever had the longest paws (pause) would hold on best. Todhunter, in playful mood, saw deeper into it than that, and pronounced for the cat that had the highest mew, for to his mathematical mind the Greek letter mu was the coefficient of friction!
If a penny held between finger and thumb, and released by withdrawing the finger, starts “heads” and makes half a turn in falling through the first foot, it will be “heads” again on reaching the floor, if it is held four feet above it at first.
Funnyboy had secretly prepared himself for the occasion by rubbing the chemical coating from the side of the box on to his boot.
If a bicycle is stationary, with one pedal at its lowest point, and that pedal is pulled backwards, while the bicycle is lightly supported, the bicycle will move backwards, and the pedal relatively to the bicycle, will move forwards. This would be quite unexpected by most people, and it is well worth trying.
[II-190]
The rough stones, by which any number of pounds, from 1 to 364, can be weighed, are respectively 1 ℔., 3 ℔s., 9 ℔s., 27 ℔s., 81 ℔s., and 243 ℔s. in weight.
If we disregard the resistance of the air, a small clot of mud thrown from the hindermost part of a wheel would describe a parabola, which would, in its descending limb, bring it back into kissing contact with the wheel which had rejected it.
When the carpenter cut the door too little, he did not in fact cut it enough, and he had to cut it again, so that it might fit.
If from the North Pole you start sailing in a south-westerly direction, and keep a straight course for twenty miles, you must steer due north to get back as quickly as possible to the Pole, if, indeed, it has been possible to start from it in any direction other than due south.
Dick’s feet will travel in round numbers nearly 16 feet further than his head, or to be exact, 15·707,960 feet.
The initial letters of Turkey, Holland, England, France, Italy, Norway, Austria, Lapland, and Spain spell, and in this sense are the same as, “the finals.”
The only sum of money which satisfies the condition that its pounds, shillings, and pence written down as a continuous number, exactly give the number of farthings which it represents, is £12, 12s., 8d., for this sum contains 12,128 farthings.
[II-191]
If, when a train, on a level track, and running all the time at 30 miles an hour, slips a carriage which is uniformly retarded by brakes, and this comes to rest in 200 yards, the train itself will then have travelled 400 yards.
The slip carriage, uniformly retarded from 30 miles an hour to no miles an hour, has an average speed of 15 miles an hour, while the train itself, running on at 30 miles an hour all the time, has just double that speed, and so covers just twice the distance.
The traveller had fivepence farthing when he said to the landlord, “Give me as much as I have in my hand, and I will spend sixpence with you.” After repeating this process twice he had no money left.
This is the way to obtain eleven by adding one-third of twelve to four-fifths of seven—
TW(EL)VE + S(EVEN) = ELEVEN
Here is the completed sum:—
2 | 1 | 5 | ) | * | 7 | * | 9 | * | ( | 1 | * | * | 2 | 1 | 5 | ) | 3 | 7 | 1 | 9 | 5 | ( | 1 | 7 | 3 | |
* | * | * | 2 | 1 | 5 | |||||||||||||||||||||
* | 5 | * | 9 | 1 | 5 | 6 | 9 | |||||||||||||||||||
* | 5 | * | 5 | 1 | 5 | 0 | 5 | |||||||||||||||||||
* | 4 | * | 6 | 4 | 5 | |||||||||||||||||||||
* | * | * | 6 | 4 | 5 |
The clue is that no figure but 3, when multiplied into 215, produces 4 in the tens place.
If I attempt to buy as many heads of asparagus as can be encircled by a string 2 feet long for double the price paid for as many as half[II-192] that length will encompass, I shall not succeed. A circle double of another in circumference is also double in diameter, and its area is four times that of the other.
If, when you reverse me, and my square, and my cube, and my fourth power, you find that no changes have been made, I am 11, my square is 121, my cube 1331, and my fourth power 14641.
A thousand pounds can be stored in ten sealed bags, so that any sum in pounds up to £1,000 can be paid without breaking any of the seals, by placing in the bags 1, 2, 4, 8, 16, 32, 64, 128, 256, and 489 sovereigns.
It is the fraction 6⁄9 which is unchanged when turned over, and which, when taken thrice, and then divided by two becomes 1.
When the three gamblers agreed that the loser should always double the sum of money that the other two had before them, and they each lost once, and fulfilled the conditions, remaining each with eight sovereigns in hand, they had started with £13, £7, and £4 as the following table shows:—
A | B | C | |
---|---|---|---|
£ | £ | £ | |
At starts | 13 | 7 | 4 |
When A loses | 2 | 14 | 8 |
When B loses | 4 | 4 | 16 |
When C loses | 8 | 8 | 8 |
[II-193]
Tom’s sum, which his mischievous neighbour rubbed almost out, is reconstructed thus:—
3 | 4 | 5 | 3 | 4 | 5 | |||||
* | * | 3 | 7 | |||||||
* | * | * | * | 2 | 4 | 1 | 5 | |||
* | * | * | * | 1 | 0 | 3 | 5 | |||
* | * | 7 | 6 | * | 1 | 2 | 7 | 6 | 5 |
Here are two other arrangements of the nine digits which produce 45, their sum; each is used once only:—
5 × 8 × 9 × (7 + 2)1 × 3 × 4 × 6 = 45
72 - 5 × 8 × 93 × 4 × 6 + 1 = 45
If, when the combined ages of Mary and Ann are 44, Mary is twice as old as Ann was when Mary was half as old as Ann will be when Ann is three times as old as Mary was when Mary was three times as old as Ann, Mary is 271⁄2 years old, and Ann is 161⁄2.
For, tracing the question backwards, when Ann was 51⁄2 Mary was 161⁄2. When Ann is three times that age she will be 491⁄2. The half of this is 243⁄4, and when Mary was at that age Ann was 133⁄4. Mary’s age, by the question, was twice this, or 271⁄2.
It is safer at backgammon to leave a blot in the tables which can be taken by an ace than one which a three would hit. In either the case of an actual ace or a three the chance is one in[II-194] eleven; but there are two chances of throwing deuce-ace, the equivalent of three.
If I start from a bay, where the needle points due north, 1200 miles from the North Pole, and the course is perfectly clear, I can never reach it if I steam continuously 20 miles an hour, steering always north by the compass needle. After about 200 miles I come upon the Magnetic Pole, which so affects the needle that it no longer leads me northward, and I may have to steer south by it to reach the geographical Pole.
The 21 casks, 7 full, 7 half full, and 7 empty, were shared equally by A, B, and C, as follows:—
Full cask. |
Half full. |
Empty. | |
---|---|---|---|
A | 2 | 3 | 2 |
B | 2 | 3 | 2 |
C | 3 | 1 | 3 |
or— | |||
A | 3 | 1 | 3 |
B | 3 | 1 | 3 |
C | 1 | 5 | 1 |
Thus each had 7 casks, and the equivalent of 31⁄2 caskfuls of wine.
The foraging mouse, able to carry home three ears at a time from a box full of ears of corn, could not add more than fourteen ears of corn to its store in fourteen journeys, for it had each time to carry along two ears of its own.
If, with equal quantities of butter and lard, a small piece of butter is taken and mixed into all the lard, and if then a piece of this blend of similar size is put back into the butter, there[II-195] will be in the end exactly as much lard in the butter as there is butter in the lard.
The fallacy of the equation—
4 - 10 = 9 - 15
4 - 10 + 25⁄4 = 9 - 15 + 25⁄4
and the square roots of these—
2 - 5⁄2 = 3 - 5⁄2
therefore 2 = 3
is explained thus:—The fallacy lies in ignoring the fact that the square roots are plus or minus. In the working we have taken both roots as plus. If we take one root plus, and the other minus, and add 5⁄2, we have either 2 = 2, or 3 = 3.
The largest possible parcel which can be sent through the post under the official limits of 3 feet 6 inches in length, and 6 feet in length and girth combined, is a cylinder 2 feet long and 4 feet in circumference, the cubic contents of which are 26⁄11 cubic feet.
We can show, or seem to show, that either four, five, or six nines amount to 100, thus:—
999⁄9 = 100 | IX IX IX IX IX 100 |
9 × 9 + 9 + 99⁄9 = 100 |
This is the magic square arrangement, so[II-196] contrived that the products of the rows, columns, and diagonals are all 1,000.
50 | 1 | 20 |
4 | 10 | 25 |
5 | 100 | 2 |
If seven boys caught four crabs in the rock-pools at Beachy Head in six days, the twenty-one boys who searched under the seaweed and only caught one crab with the same rate of success were only at work for half a day.
A watch could be set of a different trio from a company of fifteen soldiers for 455 nights, and one of them, John Pipeclay, could be included ninety-one times.
If Augustus Cæsar was born September 23, B.C. 63, he celebrated his sixty-third birthday on September 23, B.C. 0; or, writing it otherwise, September 23, A.D. 0; or again, if we wish to include both symbols, B.C. 0 A.D. It is clear that his sixty-second birthday fell on September 23, B.C. 1, and his sixty-fourth on September 23, A.D. 1, so that the intervening year may be written as above.
The difference of the ages of A and B who were born in 1847 and 1874, is 27, or 30 - 03. Hence, when A was 30 B was 03. And A was 30 in 1877. Eleven years later A was 41 and B 14, and eleven years after that A was 52 and B 25. Thus the same two digits served to express the[II-197] ages of both in 1877, 1888, and 1899. This can only happen in the cases of those whose ages differ by some multiple of nine.
is solved by CLIO, one of the nine Muses.
The man who paid a penny on Monday morning to cross the ferry, spent half of what money he then had left in the town, and paid another penny to recross the ferry, and who repeated this course on each succeeding day, reaching home on Saturday evening with one penny in his pocket, started on Monday with £1 1s. 1d. in hand.
When the three men agreed to share their mangoes equally after giving one to the monkey, and when each helped himself to a third after giving one to the monkey, without knowing that anyone had been before him, and they finally met together, gave one to the monkey, and divided what still remained, there must have been at least seventy-nine mangoes for division at the first.
If, after having looked at my watch between 4 and 5, I look again between 7 and 8, and find that the hour and minute-hands have then exactly changed places, it was 3612⁄13 minutes past 4 when I first looked. At that time the hour-hand would be pointing to 231⁄13 minutes on the dial, and at 231⁄13 minutes past 7 the hour hand would be pointing to 3612⁄13 minutes.
The number consisting of 22 figures, of[II-198] which the last is 7, which is increased exactly sevenfold if this 7 is moved to the first place, is 1,014,492,753,623,188,405,797.
The two sacks of wheat, each 4 feet long and 3 feet in circumference, which the farmer sent to the miller in repayment for one sack 4 feet long and 6 feet in circumference, far from being a satisfactory equivalent, contained but half the quantity of the larger sack, for the area of a circle the diameter of which is double that of another is equal to four times the area of that other.
The five gamblers, who made the condition that each on losing should pay to the others as much as they then had in hand, and who each lost in turn, and had each £32 in hand at the finish, started with £81, £41, £21, £11, and £6 respectively.
If we know the square of any number, we can rapidly determine the square of the next number, without multiplication, by adding the two numbers to the known square. Thus if we know that the square of 87 is 7569,
then the square of 88 = 7569 + 87 + 88 = 7744;
so too the square of 89 = 7744 + 88 + 89 = 7921;
and the square of 90 = 7921 + 89 + 90 = 8100.
The two numbers which solve the problem—
are 13⁄8 and 95⁄8, for 13⁄8 + 95⁄8 = 11, and 77⁄8 ÷ 11⁄8 = 7.
There must be nine things of each sort, in order that 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9[II-199] different selections may be made from twenty sorts of things.
The women who had respectively 33, 29, and 27 apples, and sold the same number for a penny, receiving an equal amount of money, began by selling at the rate of three a penny. The first sold ten pennyworth, the second eight pennyworth, and the third seven pennyworth.
The first had then left three apples, the second five, and the third six. These they sold at one penny each, so that they received on the whole—
The first | 10d. | + | 3d. | = | 13d. |
The second | 8d. | + | 5d. | = | 13d. |
The third | 7d. | + | 6d. | = | 13d. |
The puzzle—
is solved by fie, seen.
If a bun and a half cost three halfpence, it is plain that each bun costs a penny, but, by general custom, you buy seven for sixpence.
The hands of a watch would meet each other twenty-five times in a day, if the minute-hand moved backwards and the hour-hand forwards. They are, of course, together at starting.
The only way in which half-a-crown can be equally divided between two fathers and two sons, so that a penny is the smallest coin made use of, is to give tenpence each to a grandfather, his son, and his grandson.
If the number of the revolutions of a bicycle wheel in six seconds is equal to the number of miles an hour at which it is running, the circumference of the wheel is 84⁄5 feet.
The hour that struck was twelve o’clock.
[II-200]
Sixty years.
If I jump off a table with a 20lb dumb-bell in my hand there is no pressure upon me from its weight while I am in the air.
If at a bazaar I paid a shilling on entering each of four tents, and another shilling on leaving it, and spent in each tent half of what was in my pocket, and if my fourth payment on leaving took my last shilling, I started with 45s., spending 22s. in tent 1, 10s. in tent 2, 4s. in tent 3, and 1s. in tent 4, having also paid to the doorkeepers 8s.
When rain is falling vertically at 5 miles an hour, and I am walking through it at 4 miles an hour, the rain drops will strike the top of my umbrella at right angles if I hold it at an angle of nearly 39 degrees.
As I walk along, meeting the rain, the effect is the same as it would be if I was standing still, and the wind was blowing the rain towards me at the rate of 4 miles an hour.
When one monkey descends from the top of a tree 100 cubits high, and makes its way to a well 200 yards distant, while another monkey, leaping upwards from the top, descends by the hypotenuse to the well, both passing over an equal space, the second monkey springs 50 cubits into the air.
The steamboat which springs a leak 105 miles east of Tynemouth Lighthouse, and, putting back, goes at the rate of 10 miles an hour the first hour, but loses ground to the extent in each succeeding hour of one-tenth of her speed in the previous hour, never reaches the lighthouse, but goes down 5 miles short of it.
[II-201]
Twenty-one hens will lay ninety-eight eggs in a week, if a hen and a-half lays an egg and a-half in a day and a-half. Evidently one egg is laid in a day by a hen and a-half, that is to say three hens lay two eggs in a day. Therefore, twenty-one hens lay fourteen eggs, in a day, or ninety-eight in a week.
Q. E. D. (Quite easily done!)
If the population of Bristol exceeds by 237 the number of hairs on the head of anyone of its inhabitants that are not bald, at least 474 of them must have the same number of hairs on their heads.
In tipping his nephew from seven different coins, the uncle may give or retain each, thus disposing of it in two ways, or of all in 2 × 2 × 2 × 2 × 2 × 2 × 2 ways. But as one of these ways would be to retain them all, there are not 128, but only 127 possible variations of the tip.
The prime number which fulfils the various conditions of the question is 127. Increased by one-third, excluding fractions, it becomes 169, the square of 13. If its first two figures are transposed, and it is increased by one-third, it becomes 289, the square of 17. If its first figure is put last, and it is increased by one-third, it becomes 361, the square of 19. If, finally, its three figures are transposed, and then increased by one-third, it becomes 961, the square of 31.
Six things can be divided between two boys in 62 ways. They could be carried by two boys in 64 ways (2 × 2 × 2 × 2 × 2 × 2), but they are not divided between two boys if all are given to one, so that two of the 64 ways must be rejected.
[II-202]
The highest possible score that the dealer can make at six cribbage, if he is allowed to select the cards, and to determine the order of play, is 78. The dealer and his opponent must each hold 3, 3, 4, 4, the turn-up must be a 5, and crib must have the knave of the suit turned up, and 5, 5, 5. It will amuse many of our readers to test this with the cards.
The picture frame must be 3 inches in width all round, if it is exactly to equal in area the picture it contains, which measures 18 inches by 12 inches.
If my mother was 20 when I was born, my sister is two years my junior, and my brother is four years younger still, our ages are 56, 36, 34, and 30.
The spider in the dockyard, whose thread was drawn from her by a revolving capstan 1 foot in diameter, until 73 feet of it were paid out, after walking for a mile round and round the capstan at the end of the stretched thread in an effort to unwind it all, had, when she stopped in her spiral course, 49 more feet to walk to complete her task.
The mountebank at a fair, who offered to return any stake a hundredfold to anyone who could turn up all the sequence in twenty throws of dice marked each on one face only with 1, 2, 3, 4, 5, or 6, should in fairness have engaged to return 2332 times the money; for of the 46,656 possible combinations of the faces of the dice, only one can give the six marked faces uppermost. Thus the chance of throwing them all at one throw is expressed by 1⁄46656, and in twenty throws by about 1⁄2332.
[II-203]
If 90 groats (each = 4d.) feed twenty cats for three weeks, and five cats consume as much as three dogs, seventy-two hounds can be fed for £39 in a period of ninety-one days.
When equal wine-glasses, a half and a third full of wine, are filled up with water, and their contents are mixed, and one wine-glass is filled with the mixture, it contains 5⁄12 wine and 7⁄12 water.
The arrangement by which St Peter is said to have secured safety for the fifteen Christians, when half of the vessel’s passengers were thrown overboard in a storm, is as follows:—
XXXXIIIIIXXIXXXIXIIXXIIIXIIXXI
Each Christian is represented by an X, and if every ninth man is taken until fifteen have been selected, no X becomes a victim.
If Farmer Southdown’s cow had a fine calf every year, and each of these, and their calves in their turn, at two years old followed this example, the result would be no less than 2584 head in sixteen years.
The number of the flock was 301. This is found by first taking the least common multiple of 2, 3, 4, 5, 6, which is 60, and then finding the lowest multiple of this, which with 1 added is divisible by 7. This 301 is exactly divisible by 7, but by the smaller numbers there is 1 as remainder.
[II-204]
The rule for determining easily the number of round bullets in a flat pyramid, with a base line of any length, is this:—
Add a half to half the number on the base line, and multiply the result by the number on that line. Thus, if there are twelve bullets as a foundation—
12 + 1⁄2 = 13⁄2; and 13⁄2 × 12⁄1 = 78.
The same result is reached by multiplying the number on the base line by a number larger by one, and then halving the result. Thus—
12 × 13 = 156, 156 ÷ 2 = 78.
We can gather from the lines—
that old General Host had an army 24,000 strong.
When the farmer sent five pieces of chain of 3 links each, to be made into one continuous length, agreeing to pay a penny for each link cut, and a penny for each link joined, the blacksmith, if he worked in the best interest of the farmer, could only charge sixpence: for he could cut asunder one set of 3 links, and use these three single links between the other four sets.
If, in a parcel of old silver and copper coins, each silver piece is worth as many pence as there are copper coins, and each copper coin is worth as many pence as there are silver coins, there are eighteen silver and six copper coins, when the whole parcel is worth eighteen shillings.
These are five groups that can be arranged with the numbers 1 to 11 inclusive, so that they are all equal:—
(82 - 52 + 1) = (112 - 92) = (72 - 32) = (62 + 22) = 4(10).
John Bull, under the conditions given, lived to the age of eighty-four years.
The two numbers to each of which, or to the halves of which, unity is added, forming in every case a square number, are 48 and 1680.
The true weight of a cheese that seemed to weigh 16 ℔s. in one scale of a balance with arms of unequal length, and only 9℔s. in the other, is 12℔. This is found by multiplying the 16 by the 9, and finding the square root of the result.
[II-206]
The two parts into which 100 can be divided, so that if one of them is divided by the other the quotient is again exactly 100 are 991⁄101 and 100⁄101.
If, with marbles in two pockets, I add one to those in that on the right, and then multiply its contents by the number it held at first, and after dealing in a similar way with those on the left, find the difference between the two results to be 90; while if I multiply the sum of the two original quantities by the square of their difference the result is 176, I started with twenty-three in the right-hand pocket and twenty-one in the other.
The circle of twenty-one friends who arranged to meet each week five at a time for Bridge so long as exactly the same party did not meet more than once, and who wished to hire a central room for this purpose, would need it for no less than 20,349 weeks, or more than 390 years, to carry out their plan.
If a herring and a half costs (not cost) a penny and a half, the price of a dozen such quantities is eighteenpence.
The sum of money which in a sense appears to be the double of itself is 1s. 10d., for we may write it one and ten pence or two and twenty pence.
The “comic arithmetic” question set by Dr Bulbous Roots—
Divide my fifth by my first, and you have my fourth; subtract my first from my fifth, and you have my second; multiply my first by my fourth followed by my second, and you have my third; place my second after my first, and you have my third multiplied by my fourth—is solved by COMIC.
[II-207]
If the earth could stand still, and a straight tunnel could be bored through it, a cannon ball dropped into it, if there is no air or other source of friction, would oscillate continually from end to end.
Taking air into account, the ball would fall short of the opposite end at its first lap, and in succeeding laps its path would become shorter and shorter, until its initial energy was exhausted, when it would come to rest at the centre.
He sent 163. She sent 157.
When twins were born the estate was properly divided thus:—
Taking the daughter’s share as | 1 | |
The widow’s share would be | 2 | |
And the son’s share | 4 | |
Total | 7 | shares. |
So the son takes four-sevenths, the widow two-sevenths, and the daughter one-seventh of the estate.
If each of my strides forwards or backwards across a 22 feet carpet is 2 feet, and I make a stride every second; and if I take three strides forwards and two backwards until I cross the carpet, I reach the end of it in forty-three seconds. In three steps I advance 6 feet. Then in two steps I retrace 4 feet, thus gaining only 2 feet in five steps, i.e., in five seconds. I therefore advance 16 feet in forty seconds, and three more strides cover the remaining 6 feet.
If the captain of a vessel chartered to sail from Lisbon to New York, which appear on a map of the world to be on the same parallel of latitude, and which are, along the parallel,[II-208] about 3600 miles apart, takes his ship along this parallel, he will not be doing his best for the impatient merchant who has had an urgent business call to New York.
The shortest course between the two points is traced by a segment of a “great circle,” having its centre at the centre of the earth, and touching the two points. This segment lies wholly north of the parallel, and is the shortest possible course.
When John and Harry, starting from the right angle of a triangular field, run along its sides, and meet first in the middle of the opposite side, and again 32 yards from their starting point, if John’s speed is to Harry’s as 13 to 11, the sides of the field measure 384 yards.
If two sorts of wine when mixed in a flagon in equal parts cost 15d., but when mixed so that there are two parts of A to three of B cost 14d., a flagon of A would cost 20d., and a flagon of B 10d.
If, when a man met a beggar, he gave him half of his loose cash and a shilling, and meeting another gave him half what was left and two shillings, and to a third half the remainder and three shillings, he had two guineas at first.
The clerk who has two offers of work from January 1, one from A of £100 a year, with an annual rise of £20, and the other from B of £100 a year, with a half-yearly rise of £5, should accept B’s offer.
The half-yearly payments from A (allowing for the rise), would be 50, 50, 60, 60, 70, 70, etc., etc.; and from B they would be 50, 55, 60, 65, 70, 75, etc., etc., so that B’s offer is worth £5 a year more than A’s always.
[II-209]
If I have a number of florins and half-crowns, but no other coins, I can pay my tailor £11, 10s. in 224 different ways.
This can be found thus by rule of thumb: Start with 0 half-crowns and 115 florins. Then 4 half-crowns and 110 florins. Add 4 half-crowns and deduct 5 florins each time till 92 half-crowns and 0 florins is reached.
The monkey climbing a greased pole, 60 feet high, who ascended 3 feet, and slipped back 2 feet in alternate seconds, reached the top in 1 minute, 55 seconds, for he did not slip back from the top.
When Adze, the carpenter, secured his tool-chest with a puzzle lock of six revolving rings, each engraved with twelve different letters, the chances against any one discovering the secret word formed by a letter on each ring was 2,985,983 to 1; for the seventy-two letters may be placed in 2,985,984 different arrangements, only one of which is the key.
The five married couples who arranged to dine together in Switzerland at a round table, with the ladies always in the same places, so long as the men could seat themselves each between two ladies, but never next to his own wife, were able under these conditions to enjoy thirteen of these nights at the round table.
If in a calm the tip of a rush is 9 inches above the surface of a lake, and as the wind rises it is gradually blown aslant, until at the distance of a yard it is submerged, it is growing in water that is 5 feet 71⁄2 inches deep.
[II-210]
Aminta was eighteen.
When Dick took a quarter of the bag of nuts, and gave the one over to the parrot, and Tom and Jack and Harry dealt in the same way with the remainders in their turns, each finding a nut over from the reduced shares for the bird, and one was again over when they divided the final remainder equally, there were, at the lowest estimate, 1021 nuts in the bag.
Eight and a quarter is the answer to the nonsense question—
The similar fraction of a pound, a shilling, and a penny which make up exactly a pound are as follows:—
s. | d. | |||
---|---|---|---|---|
240⁄253 of £1 = | 18 | 11 | 169⁄253 | |
240⁄253 of 1s. = | 11 | 97⁄253 | ||
240⁄253 of 1d. = | 240⁄253 | |||
£1 | 0 | 0 |
When Dr Tripos thought of a number, added 3, divided by 2, added 8, multiplied by 2, subtracted 2, and thus arrived at double the number, he started with 17.
When A and B deposited equal stakes with C, and agreed that the one who should first win three games of billiards should take all, but consented to a division in proper shares when A had won two games and B one, it was evident that if A won the next game all would go to him,[II-211] while if he lost he would be entitled to one half. One case was as probable as the other, therefore he was entitled to half of these sums taken together; that is, to three quarters of the stakes, and B to a quarter only.
The average speed of a motor which runs over any course at 10 miles an hour, and returns over the same course at 15 miles an hour, is 12 miles an hour, and not 121⁄2, as might be imagined. Thus a run of 60 miles out takes, under the conditions, six hours, and the return takes four hours; so that the double journey of 120 miles is done in ten hours, at an average speed of 12 miles an hour.
Farmer Hodge, who proposed to divide his sheep into two unequal parts, so that the larger part added to the square of the smaller part should equal the smaller part added to the square of the larger part, had but one sheep.
Faithful to his word, he divided this sheep into two unequal parts, 2⁄3 and 1⁄3, and was able to show that 2⁄3 + 1⁄9 = 7⁄9, and that 1⁄3 + 4⁄9 = 7⁄9. He was heard to declare further, and he was absolutely right, that no number larger than 1 can be so divided as to satisfy the conditions which he had laid down.
The fact that sheep is both singular and plural, adds much to the perplexing points of this attractive problem.
Here is a very simple proof that the number must be 1:—
Let | a + b | = | no. of sheep |
then | a2 + b | = | b2 + a |
a2 - b2 | = | a - b | |
or | (a + b)(a - b) | = | a - b |
therefore | a + b | = | 1. |
[II-212]
A horse that carries a load can draw a greater weight up the shaft of a mine than a horse that bears no burden. The load holds him more firmly to the ground, and thus gives him greater power over the weight he is raising from below.
In the six chests, of which two contained pence, two shillings, and two pounds, there must have been at least the value of 506 pence. This can be divided into 22 (or 19 + 3) shares of 23d. each, or 23 (19 + 4) shares of 22d. each. Evidently then the treasure can be divided so that 19 men have equal shares, while their captain has either 3 shares or 4 shares.
If I bought a parcel of nuts at 49 for 2d., and divided it into two equal parts, one of which I sold at 24, the other at 25 a penny; and if I spent and received an integral number of pence, but bought the least possible number of nuts, I bought 58,800 nuts, at a cost of £10, and I gained a penny.
When, with a purse containing sovereigns and shillings, after spending half of its contents, I found as many pounds left as I had shillings at first, I started with £13, 6s.
When the lady replied to a question as to her age—
she was 28 years old.
If cars run, at uniform speed, from Shepherd’s Bush to the Bank, at intervals of two minutes, and I am travelling at the same[II-213] rate in the opposite direction, I shall meet 30 in half-an-hour, for there are already 15 on the track approaching me, and 15 are started from the other end during my half hour’s course.
If it was possible to carry out my offer of a farthing for every different group of apples which my greengrocer could select from a basket of 100 apples, he would be entitled to the stupendous sum of £18,031,572,350 19s. 2d.
If the minute-hand of a clock moves round between 3 and 4 in the opposite direction to the hour-hand, the hands will be exactly together when it is really 417⁄13 minutes past 3.
If the walnut monkey had stopped to help the other, and they had eaten filberts at equal rates, they would have escaped in 21⁄4 minutes.
The value of the cheque, for which the cashier paid by mistake pounds for shillings, was £5, 11s. 6d. The receiver to whom £11, 5s. 6d. was handed, spent half-a-crown, and then found that he had left £11, 3s., just twice the amount of the original cheque.
The number 14 can be made up by adding together five uneven figures thus:—11 + 1 + 1 + 1. It will be seen that although only four numbers are used, 11 is made up of two figures.
Here is another, and quite a curious solution, 1 + 1 + 1 + 1 = 4, and with another 1 we can make up 14!
A business manager can fill up three vacant posts of varying value from seven applicants in 210 different ways. For the first[II-214] post there would be a choice among 7, for the second among 6, and for the third among 5, so that the possible variations would amount to 7 × 6 × 5 = 210.
If the fasting man, who began his task at noon, said it is now 5⁄11 of the time to midnight, he spoke at 3.45 p.m., meaning that 5⁄11 of the remaining time till midnight had elapsed since noon.
If a clock takes six seconds to strike 6, it will take 12 seconds to strike 11, for there must be ten intervals of 11⁄5 seconds each.
Twenty horses can be arranged in three stalls, so that there is an odd number in each, by placing one in the first stall, three in the second, and sixteen (an odd number to put into any stall!) in the third.
The little problem, “Given a, b, c, to find q,” is solved, without recourse to algebra, thus: a, b, c, = c, a, b; take a cab and go over Kew Bridge, and you find a phonetic Q!
Tom Evergreen was 75 years old when he was asked his age by some men at his club in 1875, and said—“The number of months that I have lived are exactly half as many as the number which denotes the year in which I was born.”
Eight different circles can be drawn. A circle can have one of the three inside and two outside in three ways, or one outside and three inside in three ways (each of the three being inside or outside in turn), or all three may be inside, or all three may be outside, the touching circle.
[II-215]
The way to arrange 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, so that used once each they form a sum which is equal to 1 is this:—
3570 + 148296 = 1
The sum of the first fifty numbers may be found without any addition thus:—The first fifty numbers form twenty-five pairs of fifty-one each (1 + 50, 2 + 49, etc., etc.), and 51 × 25 is practically 51 × 100 ÷ 4 = 1275.
The tramcar A, which started at the same time as B, but ran into a “lie by” in four minutes, and waited there five minutes till B came along, when they completed their courses at the same moment in opposite directions, could have run the whole distance in ten minutes.
What remains will be 8 if we take 10 and double it by writing one 10 over another so as to form 18, and then deduct 10.
If the average weight of the Oxford crew is increased by 2℔s., when one of them who weighs 12 stone, is replaced by a fresh man, the weight of that substitute is 13 stone 2℔s.
If a motor-car is twice as old as its tyres were when it was old as its tyres are, and if, when these tyres are as old as the car itself is now, their united ages will be 21⁄4 years, the car is now 12 months old, and the tyres have had 9 months’ wear.
[II-216]
A and B, who could each carry provisions for himself for twelve days, started to penetrate as far as possible into a desert, on the understanding that neither of them should miss a day’s food. After an advance of four days, each had provisions still for eight days. One gave four portions of his store to his companion, which did not overload him, and returned with the other four. His comrade was then able to advance another four days’ journey, and still have rations for the eight days’ return. Thus the furthest possible penetration into the desert under the conditions was an eight days’ march.
If, when a bottle of medicine and its cork cost half-a-crown, the bottle and the medicine cost two and a penny more than the cork, the cork cost twopence half-penny.
A boat’s crew far from land, with no sail or oars, and with no assistance from wind or stream, or outside help of any kind, can regain the shore by means of a coil of rope. Motion is given to the boat by tying one end of the rope to the after thwart, and giving the other end a series of violent jerks in a direction parallel to the keel. This curious illustration of mechanical principles is from “Ball’s Mechanical Recreations.” (Macmillan.)
It will be found that after a crown and as many four-shilling pieces as possible have been crammed into our pockets, there would still be room for one sixpence and one threepenny-piece in some corner or cranny. We can, therefore, have one crown, one sixpence, one threepenny-piece, and as many four-shilling pieces as our pockets will hold, and yet be unable to give change for a half-sovereign.
[II-217]
There were fifteen apples in the basket. Half of these and half an apple, i.e., eight were first given, then half the remainder and half an apple, i.e., four, then on similar lines two, leaving one in the basket.
The Queer Division—
is solved by LV ÷ V, or 55 ÷ 5 = 11.
A motor that goes 9 miles an hour uphill, 18 miles an hour downhill, and 12 miles an hour on the level, will take 8 hours and 20 minutes to run 50 miles out and return at once over the same course.
The number of shots fired at a mark was 420 each by A, B, and C. A made 280 hits, B 315, and C 336.
If a dog and a cat, evenly matched in speed, run a race out and back over a course of 75 yards in all, and the dog always takes 5 feet at a bound, and the cat 3 feet, the cat will win, because at the turning point the dog overleaps the half distance more than the cat does, and so has a longer run in.
When a man caught up a wagon going at 3 miles an hour, which was just visible to him in a fog at a distance of 55 yards, and which he saw for five minutes before reaching it, he was walking at the rate of 33⁄8 miles an hour.
[II-218]
Three horses, A B C, can be placed after a race in thirteen different ways, thus:—A B C, A C B, B A C, B C A, C A B, C B A, or A B C as a dead heat; or A B, A C, or B C equal for the first place; or A first with B C equal seconds; or B first with A C equal seconds; or C first with A B equal seconds.
The 34 points scored against Oxbridge by the New Zealanders can be made up in two ways, either by 8 tries and 2 converted tries, or by 3 tries and 5 converted tries.
The highest possible score on these lines is 10 tries converted, equalling 50 points, and as the New Zealanders’ score, if all tries are converted, becomes four-fifths of this, their actual score was 3 tries and 5 converted into goals.
The smallest number, of which the alternate figures are cyphers, which is divisible by 9 and by 11 is 909090909090909090909!
Our problem in which it is stated that A with 8d. met B and C with five and three loaves, and asked how the cash should be divided between B and C, if all agreed to share the loaves. Now each eats two loaves and two-thirds of a loaf, and B gives seven-thirds of a loaf to A, while C gives him one-third of a loaf. So B receives 7d. and C 1d.
When, on opening four money-boxes containing pennies only, it was found that those in the first with half of all the rest, those in the second with a third of the others, those in the third with a fourth, and those in the fourth with a fifth of all the rest, amounted in each case to 740, the four boxes held £6. 1s. 8d., and the numbers of pennies were 20, 380, 500, and 560.
[II-219]
If two steamers, A and B, start together for a trip to a distant buoy and back, and A steams all the time at ten knots an hour, while B goes outward at eight knots and returns at twelve knots an hour, B will regain port later than A, because its loss on the outward course will not have been recovered on the run home.
If in London a new head to a golf club costs four times as much as a new leather face, while at St Andrews it costs five times as much, and if the leather face costs twice as much in London as in St Andrews, and if, including a shilling paid for a ball, the charges in London were twice as much as they would have been at St Andrews, the London cost of a new head is four shillings, and of a leather face a shilling.
When two children were asked to give the total number of sheep and cattle in a pasture, from the number of each sort, and one by subtraction answered 10, while the other arrived at 11,900 by multiplication, the true numbers were 170 sheep, 70 cattle, 240 in all.
If a man picks up one by one fifty-two stones, placed at such intervals on a straight road that the second is a yard from the first, the third 3 yards from the second, and so on with intervals increasing each time by 2 yards, and bring them all to a basket placed at the first stone, he has to travel about 52 miles, or, to be quite exact, 51 miles, 1292 yards.
When, in the House of Commons, if the Ayes had been increased by 50 from the Noes, the motion would have been carried by 5 to 3;[II-220] and if the Noes had taken 60 votes from the Ayes it would have been lost by 4 to 3, the motion succeeded; 300 voted “Aye,” and 260 “No.”
There are 143 positions on the face of a watch in which the places of the hour and minute-hands can be interchanged, and still indicate a possible time. There would be 144 such positions but for the fact that at twelve o’clock the hands occupy the same place.
If in a cricket match the scores in each successive innings are a quarter less than in the preceding innings, and the side which goes in first wins by 50 runs, the complete scores of the winners are 128 and 72, and of the losers 96 and 54.
When a ball is thrown vertically upwards, and caught five seconds later, it has risen 100 feet. It takes the same time to rise as to fall, and when a body falls from rest, it travels a number of feet represented by sixteen times the square of the time in seconds.
Hence comes the rule that the height in feet of a vertical throw is found by squaring the time in seconds of its flight, and multiplying by four.
The carpet which, had it been 5 feet broader and 4 feet longer, would have contained 116 more feet, and if 4 feet broader and 5 longer 113 more, was 12 feet long and 9 feet broad.
When, in estimating the cost of a hundred similar articles, shillings were read as pounds, and pence as shillings, and the estimated cost was in consequence £212, 18s. 4d. in excess of the real cost, the true cost of each article was 2s. 5d.
[II-221]
If the square of the number of my house is equal to the difference of the squares of the numbers of my next door neighbours’ houses, and if my brother in the next street can say the same of his house, though its number is not the same as that of mine, our houses are numbered 8 and 4. In my street the even numbers are all on one side, in my brother’s street they, run odd and even consecutively, and so 82 = 102 - 62, and 42 = 52 - 32.
When two men of unequal strength have to move a block which weighs 270 ℔s., on a light plank 6 feet long, if the stronger man can carry 180 ℔s., the block must be placed 2 feet from him, so that he may have that share of the load.
If a man who had twenty coins, some shillings, and the rest half-crowns, were to change the half-crowns for sixpences, and the shillings for pence, and then found that he had 156 coins, he must have had eight shillings at first.
If, when coins are placed on a table at equal distances apart, so as to form sides of an equilateral triangle, and when as many are taken from the middle of each side as equal the square root of the number on that side, and placed on the opposite corner, the number on each side is then to the original number as five is to four, there are forty-five coins in all.
When the gardener found that he would have 150 too few if he set his posts a foot apart, and seventy to spare if he set them at every yard, he had 180 posts.
[II-222]
In order to buy with £100 a hundred animals, cows at £5, sheep at £1, and geese at 1s. each, the purchaser must secure nineteen cows, one sheep, and eighty geese.
If John, who is 21, is twice as old as Mary was when he was as old as Mary is, Mary’s age now is 153⁄4 years.
If in a cricket match A makes 35 runs, and C and D make respectively half and a third of B’s score, and if B scores as many less than A as C scores more than D, B made 30, C 15, and D 10 runs.
The least number which, divided by 2, 3, 4, 5, 6, 7, 8, 9, or 10, leaves remainders 1, 2, 3, 4, 5, 6, 7, 8, 9, is 2519, their least common multiple less 1.
A square table standing on four legs, which are set at the middle points of its sides, can at most uphold its own weight upon one of its corners.
The division of ninety-nine pennies, so that share 1 exceeds share 2 by 3, is less than share 3 by 10, exceeds share 4 by 9, and is less than share 5 by 16, is 17, 14, 27, 8, and 33.
If Indians carried off a third of a flock and a third of a sheep, and others took a fourth of the remainder and a fourth of a sheep, and others a fifth of the rest and three-fifths of a sheep, and there were then 409 left, the full flock was 1025 sheep.
[II-223]
When a cistern which held fifty-three gallons was filled by three boys, A bringing a pint every three minutes, B a quart every five minutes, and C a gallon every seven minutes, it took 230 minutes to fill it, and B poured in the final quart, A and C coming up one minute too late to contribute at the last.
A man who said, late in the last century, that his age then was the square root of the year in which he was born, was speaking in the year 1892.
If when a dealer in curios sold a vase for £119, his profit per cent., and the cost price of the vase, were expressed by the same number, it had cost him £70.
The chance of throwing at least one ace in a single throw with a pair of dice is 11⁄36, for there are five ways in which each dice can be thrown so as not to give an ace, so that twenty-five possible throws exclude aces. Hence the chance of not throwing an ace is 25⁄36, which leaves 11⁄36 in favour of it.
The policeman who ran after a thief starting four minutes later, and running one-third faster, if they both ran straight along the road, caught him in twelve minutes.
At a bazaar stall, where twenty-seven articles are exposed for sale, a purchaser may buy one thing or more, and the number of choices open to him is one less than the continued product of twenty-seven twos, or 134217727.
[II-224]
168. When Nellie’s father said:—
he was 42, and she was 14.
The word square is completed thus:—
M | E | A | D |
E | D | G | E |
A | G | U | E |
D | E | E | D |
The word square filled in is:—
C | I | R | C | L | E |
I | N | U | R | E | S |
R | U | D | E | S | T |
C | R | E | A | S | E |
L | E | S | S | E | E |
E | S | T | E | E | M |
Notice the curious diagonal of E’s.
In the incomplete sentence,
SO * * * * AG * * * * LATI * * * * X * * * * ITH
the duplicate letters are filled in thus:—
SOME MEAGRE RELATIVE VEXED EDITH
The two last letters of each word are repeated as the two first of the word that follows.
[II-225]
The word square is completed thus:—
W | A | S | T | E |
A | C | T | O | R |
S | T | O | N | E |
T | O | N | I | C |
E | R | E | C | T |
By twice building up two Ds into a B we make BULBOUS.
The question put on paper to the love-lorn youth, “Loruve?” is, when interpreted, “Are you in love?” and the advice given to him on another slip, “Prove L A FD and ensure success,” reads into, “Prove a fond lover, and ensure success” (a f on d l over).
S | prin | G |
T | ar | A |
J | abe | Z |
A | t | E |
M | omen | T |
E | mme | T |
S | trik | E |
The completed word square is—
A | M | E | N | D | S |
M | I | N | I | O | N |
E | N | A | B | L | E |
N | I | B | B | L | E |
D | O | L | L | A | R |
S | N | E | E | R | S |
[II-226]
The oracular response to a young Frenchman at a fête, who inquired how he could best please the ladies—
MEC DO BIC
conceals this sage advice—
The solution to our Letter Fraction Problem is of a verbal character. The original statement
m ot y = mo
is dealt with thus:—
m on ot on y = mo not on y, and so the word monotony solves the equation.
The buried beasts are chamois, buffalo, heifer, and leopard; and when the Oxford athlete cries—
he introduces us to a porcupine.
The lines—
is solved by indivisibility, which has many an i, like a peacock’s tail.
The English word of thirteen letters in which the same vowel occurs four times, the same consonant six times, another twice, and another once, is Senselessness.
The condensed proverb “WE IS DO” reads at its full length as “Well begun is half done.”
[II-227]
This is the completed word square:—
W | A | S | H | E | S |
A | R | T | E | R | Y |
S | T | O | R | M | S |
H | E | R | M | I | T |
E | R | M | I | N | E |
S | Y | S | T | E | M |
Dr Whewell’s puzzle lines—
O | O | N | O | O. | ||||||
U | O | A | O | O | I | O | U | |||
O | N | O | O | O | O | M | E | T | O | O. |
U | O | A | O | I | D | O | S | O | ||
I | O | N | O | O | I | O | U | T | O | O! |
read thus:—
OH SIGH FOR NO CIPHER
This is the completed diamond:—
P | ||||||||
P | O | R | ||||||
C | O | R | E | S | ||||
F | O | R | C | E | P | S | ||
P | O | R | C | E | L | A | I | N |
R | E | F | L | E | C | T | ||
S | P | A | C | E | ||||
S | I | T | ||||||
N |
The medley—
Tan HE Edsa VEN in
It N Gja SmeTs AsgN
aD Az Rett De
is read by taking first the capitals in their order, and then the small type. It comes put out as “The Evening Standard and Saint James’s Gazette.”
[II-228]
The statement, I can travel first-class on the G.E.R. from 2222222244444500, reads into—from 22 to 2 to 22 to 4 for 44 4d; or, in plain terms, from 1.38 to 3.38 for 14s. 8d. This works out at about 3d. a mile, the usual allowance for first-class, for two hours, at about 29 miles an hour.
Read the inscription backwards, and it resolves itself into the lines familiar to us in our childhood:—
The reason why the invitation to Jack to sample the Irish stew at Simpson’s was to be kept in mind by the catch words—
Join me at and
Join me at ai
Join me at as
is because if you join me and at, and note that and is on i, which is on s, you arrive at the suggestive sentence—meat and onions.
The labourer’s quaint letter, which ran “Cepatomtogoatatrin,” was, in plainer English, “Kept at home to go a tatering.”
Our double acrostic comes out thus:—
Problem—Puzzles
P | a | P |
(T) R | U (E) | |
O | Z | |
B | o | Z |
L | eve | L |
E | v | E |
M | S |
[II-229]
The Hidden Proverb is—
“Necessity is the mother of invention.”
The “deed done” in our Will puzzle is the making in Roman numerals of “Codicil.” The lawyer was to set down, a hundred, to add nothing, to set down five hundred, then one, then another hundred, and then one more, and, finally, fifty, and accordingly he wrote upon the parchment the one word CODICIL.
The word square is—
E | D | I | T | O | R |
D | E | S | I | R | E |
I | S | L | A | N | D |
T | I | A | R | A | S |
O | R | N | A | T | E |
R | E | D | S | E | A |
The notes of music A. G. A. E. A. over the grave of a French musician, who was choked by a fish bone, are in the French notation, “La sol la mi la,” which reads into “La sole l’a mis 1à.”
Similarly the inscription over the porch of Gustave Doré’s house C. E. B. A. C. D. is equivalent to “Do, mi, si, la, do, re,” which may be taken to represent “Domicile à Doré.”
When his best girl said to Jack Spooner, “We can go to-morrow at 222222222222 LEY STREET,” he understood her to mean, “We can go to-morrow, at two minutes to two, to two twenty-two, to 222 Tooley Street.”
CT T T T T T T T T T spells contents (c on ten ts!).
[II-230]
We can treat the word disused so as to affirm or to disallow the use of its initial or final d, for we can write it d is used, or disuse d!
The title of the book shaken up into
E I O O O U
B C N N R R S S
is “Robinson Crusoe.”
If the letter M only is inserted in the proper places in the line—
A DEN I I CAN DOCK
it will read: Madmen mimic and mock.
The quotation from Shakespeare—
OXXU8 MAAULGIHCTE
NOR
is by interpretation:—“Nothing extenuate, nor set down aught in malice.”
The phonetic nightmare—
Ieukngheaurrhphthewempeighghteaps—
is merely the word unfortunates. It can be justified thus by English spelling of similar sound taken letter by letter:—
u—iew in view; n—kn in know; f—gh in tough; o—eau in beau; r—rrh in myrrh; t—phth in phthisis; u—ewe; n—mp in comptroller; a—eigh in neigh; t—ght in light; e—ea in tea; and s—ps in psalm.
The word square is completed thus:—
F | A | R | M |
A | R | E | A |
R | E | N | T |
M | A | T | E |
[II-231]
is disentangled thus:—
The five buried places are Deal, London, Esk, Perth, and Baden. The word is Ourangoutang.
It is no offence to conspire in the evening, because what is treasonable is reasonable after t!
The bit of botany—
is solved by, me, an em on e, the delicately hung wind-flower.
[II-232]
The pied proverb, is “A rolling stone gathers no moss.”
The Drop Letter Proverb—
E..t. .e.s..s .a.e .h. .o.. ..i.e, is—Empty vessels make the most noise.
The English word of five syllables, which has eight letters, five of them vowels—namely an a, an e, twice i, and y—is Ideality.
TORMENT may be turned into RAPTURE, using four links, changing only one letter each time, and varying the order of the letters, thus: TORMENT, portent, protest, pratest, praters, RAPTURE.
The pied sentence—
a a c e e e f f h h i i i i i m n n o o o p r r s s t t t t t
can be cast into the proverb—
“Procrastination is the thief of time.”
The English sentence, when the letter o is added, reads:—
“Good old port for orthodox Oxford dons.”
is solved by Strengths.
The letters AAAAABBNNIIRSSTT form the word Antisabbatarians.
[II-233]
The quotation from Shakespeare,
KINI
stands for “A little more than kin, and less than kind.”
The two English words which have the first six letters of the alphabet among their ten letters are fabricated and bifurcated.
The letter A stands at the head of the letters of the alphabet. For bed 3 of these are used; for goal, 4; for prison, 6; for six, 3; for three, 5. The letter A is not used in the spelling of the name of any number from 1 to 100, but it makes up, with the other vowels, the number 6.
The prodigal’s letter to his father, “Dear Dad, keep 1000050,” in reply to a suggestion for safeguarding some of his prospects, was written in playful impudence; and its interpretation is, “Dear Dad, keep cool!” for the figures in Roman numerals are COOL.
The poets’ names buried in the lines—
are Gray, Moore, Byron, Pope, Dryden, Gay, Keats, and Hemans.
[II-234]
When A. B. gave up the reins of government, and C.B. took office in his place, the two verbs, similar in all respects, except that the one is longer by one letter than the other, which expressed the change, were resigns—reigns.
is solved by Cataract. The first line reads, First a c and a t, last a c and a t, that is cat and act.
Cuba.
The Rebus T S is solved by the words tones and tans, t before one s, or t before an s.
The phonetic phrase—
INXINXIN—
is, Ink sinks in!
60. Finis (F IN IS).
PAGE | |
---|---|
Word Puzzles, Missing Words, Letter Puzzles | 1 |
Anagrams, Picture Puzzles | 48 |
Palindromes | 108 |
Solutions | 111 |
[III-1]
The use of some sort of grille was not uncommon in olden days among the many methods then employed for secret correspondence. Here is an early and interesting specimen:—
VENITE PAUPERES
An important despatch would appear to be a mere confusion of letters, until it fell into the right hands, and this perforated key was laid over it, when the intended instructions were at once revealed, and read in the openings of the tracery.
[III-2]
Here, by seven straight lines and one circle, a manifold monogram is formed.
Within its borders we find a circle, a square, a parallelogram, a triangle, the vowels a, e, i, o, u; the consonants, C, D, H, K, L, M, T, W; and other forms and figures.
The missing words are spelt with the same six letters.
[III-3]
What well-known book and its author may be represented thus:—
No less than eight different words, spelt with the same six letters, are available to fill the gaps in the following lines:—
[III-4]
Upon the shutters of a barber’s shop the following legend was painted in bold letters:—
No.
John Mar
in atten
from 8 a.m.
Barber
Hair C
The bald cry a
for hi
as displayed
which make hair g
Closes
I
shall
dance
daily
and
utter
loud
s creams
in this window
listen
after 8 p.m.
One evening about 8.30, when it was blowing great guns, quite a crowd gathered round the window, and seemed to be enjoying some excellent joke. What was amusing them when one shutter blew open?
The number of letters in each word of the missing phrases is indicated by dots, and the seven letters in each case are those that spell also “no heart,” which we give as a title and clue.
[III-5]
How far phonetic spelling may be pushed, is illustrated by the following swarm of variations given in a book published at Enfield in 1829:—
Scissars | — | ers | — | irs | — | ors | — | urs | — | yrs |
Scisars | — | „ | — | „ | — | „ | — | „ | — | „ |
Sciszars | — | „ | — | „ | — | „ | — | „ | — | „ |
Scizars | — | „ | — | „ | — | „ | — | „ | — | „ |
Scizscars | — | „ | — | „ | — | „ | — | „ | — | „ |
Scizzars | — | „ | — | „ | — | „ | — | „ | — | „ |
Or the word may start with Sis, Siss, Siz, Sys, Syss, Syzz, Syzs, Syz, Cis, Ciss, Ciz, Cisz, Cysz, Cyz, Cyzz. By substituting “z” for the final “s” we may double the number, and reach a total of 1224.
Each missing word has the same six letters.
[III-6]
On this chequered floor, paved with slabs each a foot square, the palindrome word ROTATOR can be traced in various ways.
R | O | T | A | T | O | R | O | T | A | T | O | R |
O | R | O | T | A | T | O | T | A | T | O | R | O |
T | O | R | O | T | A | T | A | T | O | R | O | T |
A | T | O | R | O | T | A | T | O | R | O | T | A |
T | A | T | O | R | O | T | O | R | O | T | A | T |
O | T | A | T | O | R | O | R | O | T | A | T | O |
R | O | T | A | T | O | R | O | T | A | T | O | R |
O | T | A | T | O | R | O | R | O | T | A | T | O |
T | A | T | O | R | O | T | O | R | O | T | A | T |
A | T | O | R | O | T | A | T | O | R | O | T | A |
T | O | R | O | T | A | T | A | T | O | R | O | T |
O | R | O | T | A | T | O | T | A | T | O | R | O |
R | O | T | A | T | O | R | O | T | A | T | O | R |
If a man walks over it, taking one slab at every step, and never lengthening his strides, how many steps will he take in tracing every possible variation of the word, and how many such variations are there?
[III-7]
A bachelor clergyman, whose initials were I.E.V., had built a fernery with the profits of his tracts on the deceased wife’s sister question. He dated it on a mural tablet thus:—
My LateVVIfe’ssIsterbVILtthIs VVaLL; bVT I In trVth neVer VVeD any VVIfe at aLL, nor VVont forsooth, saIth I. e. V. |
||
If the Roman numerals are extracted from this inscription, and added together, they amount to 1884, the desired date.
Each missing word has the same six letters.
The missing words are spelt with the same six letters.
Each missing word has the same six letters.
[III-8]
In the drawer of a cabinet that had belonged to my grandmother I came upon an old sampler, beautifully worked in scarlet cross-stitch. Its very curious legend runs as follows:—
AL. IT. | |||
T.L | EW. O. MA! | ||
N.T. | Ho! UGH. AVE. Ryli. | ||
T.T. | Let. Hi! N.G.I. | ||
S.S. | We. Et. Erf. Art. Ha! | ||
N.S. | Ug. Ara. N.D.F. Lo! | ||
W.E. | R.S.T. Ha! TB. | ||
L.O. | O! Mins. Pri. | ||
N. G. | |||
The five missing words are spelt with the same seven letters.
The missing words are spelt with the same six letters.
[III-9]
The following curious Missing Words Puzzle is to be seen on a card which hangs in the bar of an inn in the Isle of Man:—
I had both— | by both I set great store | and a— |
I lent my— | and took his word therefor; | to my— |
I asked my— | and nought but words I got. | from my— |
I lost my— | for sue him I would not. | and my— |
At length with— | which pleased me very well, | came my— |
I had my— | away quite from me fell: | but my— |
If I’d both— | as I have had before, | and a— |
I’d keep my— | and play the fool no more. | and my— |
It is to be read thus:—
and so on to the end.
The missing words are spelt with the same seven letters.
Each missing word has the same six letters.
[III-10]
The decapitated words are in italics:—
The ern, or erne, is the sea-eagle.
The missing words are spelt with the same six letters.
The missing words have the same seven letters.
The six missing words are spelt with the same six letters.
[III-11]
On the front of a church, in the Largo Remedios, at Braga, in Portugal, there is an inscription which, with its letter-perfect Anagram, runs as follows:—
BEATUS IOANNES MARCUS | ||
CHRISTI DOMINI DISCIPULUS | ||
ANAGRAM | ||
IS IN MUNDO PIUS EST MEDICUS | ||
TUIS INCOLIS, BRACHARA | ||
which may be rendered—“Blessed John Mark, disciple of Christ the Lord.” He in this world is the holy healer of thy people Braga!
The missing word and groups of words are spelt with the same seven letters.
The missing words are spelt with the same six letters.
[III-12]
This diagram shows that the odd numbers of the 9 digits add up to 25, and the even numbers to 20.
1 | 2 |
3 | |
5 | 4 |
7 | 6 |
9 | 8 |
25 | 20 |
Can you arrange the 9 digits in two groups in which the odd numbers and the even will add up to exactly the same sum?
The missing words are spelt with the same six letters.
Each missing word is spelt with the same four letters.
[III-13]
How do you read these lines and their title?
The four missing words are spelt with the same seven letters.
The three missing words are spelt with the same six letters.
The missing words have the same seven letters.
Spelt with the same five letters.
[III-14]
The following puzzle-epitaph was engraved on a tombstone in Durham Cathedral:—
WEON | . | CEW | . | ERET | . | WO | |||
WET | . | WOM | . | ADEO | . | NE | |||
NON | . | EFIN | . | DUST | . | WO | |||
NO . | WLI | . | F | EB | .EGO | . | NE | ||
WILLIAM and MARGARET TAYLOR |
|||||||||
Anno Domini 1665. | |||||||||
The three missing words are spelt with the same five letters.
Each missing word is spelt with the same five letters.
[III-15]
Here is an excellent French Word Square of seven letters:—
R | E | N | E | G | A | T |
E | T | A | L | A | G | E |
N | A | V | I | R | E | S |
E | L | I | D | A | N | T |
G | A | R | A | N | C | E |
A | G | E | N | C | E | R |
T | E | S | T | E | R | A |
This is a worthy companion to the English seven-letter squares on “Problem” and “Palated,” which are given on other pages.
Each missing word has the same five letters.
Spelt with the same six letters.
[III-16]
This epitaph, most of it in some sort of dog Latin, tells its own pathetic tale on its tablet.
IT - OBIT - MORTI - MERA PUBLI - CANO - FACTO - NAM AT - RES - T - M - ANNO - XXX ALETHA - TE - VERITAS TE - DE - QUA - LV - VASTO MI - NE - A - JOVI - ALTO PERAGO - O - DO - NE - AT STO - UT - IN - A - POTOR - AC AN - IV - VAS - NE - VER - A |
||
R - I - P | ||
The missing words are spelt with the same four letters.
Each missing word has the same four letters.
[III-17]
Jan-et was quite ill one day; Feb-rile troubles came her way. Mar-tyr like, she lay in bed, Apr-oned nurses softly sped. May-be, said the leech judicial, Jun-ket would be beneficial. Jul-eps, too, though freely tried, Aug-ured ill, for Janet died. Sep-ulchre was sadly made, Oct-aves pealed and prayers were said. Nov-ices with many a tear Dec-orated Janet’s bier. |
||
Each missing word is spelt with the same six letters.
The missing words have the same five letters.
[III-18]
Within the four corners of this Mystic Diamond the Palindrome, NAME NO ONE MAN, can be traced in 16,376 different directions, in straight lines, or at right angles, starting from the centre or from the borders.
N
NaN
NamaN
NamemaN
NamenemaN
NamenonemaN
NamenooonemaN
NamenoonoonemaN
NamenoonenoonemaN
NamenoonemenoonemaN
NamenoonemamenoonemaN
NamenoonemaNamenoonemaN
NamenoonemamenoonemaN
NamenoonemenoonemaN
NamenoonenoonemaN
NamenoonoonemaN
NamenooonemaN
NamenonemaN
NamenemaN
NamemaN
NamaN
NaN
N
The missing words in the title and those in the first and third lines each contain six letters. Those in the second four, and in the fourth five.
[III-19]
If you start with the right letter in this combination, and then take every third letter, a well-known quotation from Shakespeare will be formed.
House.canoe.after.
hour.print.cave.child
sash.sleve.acorn.
ample.sad.tatta.hena
mat.ache.cake.taches.
heliac.sacque.usual.
arbor.see.mulch.jacur.
use.stop.
The missing words are spelt with the same six letters.
Each missing word is spelt with the same seven letters.
[III-20]
1. None can press me without pain
1. Pressure is against the grain.
2. I am a king without my head.
3. Here is another king instead.
It is fair to our readers to say that some knowledge of Latin and French is needed for dealing with this very excellent Acrostic, of which a full explanation is given with the solution.
Each missing word has the same five letters.
Each missing word is spelt with the same five letters.
The four missing words contain six letters.
[III-21]
Five familiar proverbs are hidden in this square of 169 letters.
R | E | N | O | W | N | E | D | T | H | A | N | W |
S | Y | O | U | R | C | A | K | E | A | N | D | A |
S | T | E | T | O | B | E | F | E | A | R | H | R |
E | A | R | K | S | S | P | O | I | L | E | A | F |
L | E | O | O | H | E | R | S | N | T | D | V | O |
O | T | M | O | T | L | I | N | O | H | T | E | U |
N | O | S | C | A | L | A | G | M | E | H | I | R |
S | N | I | Y | G | O | R | S | O | B | A | T | S |
E | N | G | N | E | N | O | T | S | R | N | P | A |
I | A | O | A | M | O | O | T | S | O | A | E | W |
R | C | D | E | V | I | L | A | H | T | D | A | S |
O | U | O | Y | N | O | I | L | D | A | E | C | A |
T | C | I | V | R | E | H | H | T | A | H | E | Z |
The proverbs are arranged in a regular sequence.
The missing words are spelt with the same six letters.
Each missing word is spelt with the same six letters.
[III-22]
Lord Duff, who evidently had a turn for puzzles, proposed this alphabetical toast, which became popular among the Jacobites.
A.B.C. | A blessed change. |
D.E.F. | Down every foreigner. |
G.H.J. | God help James. |
K.L.M. | Keep Lord Mar. |
N.O.P. | Noble Ormond preserve. |
Q.R.S. | Quickly resolve Stuart. |
T.U.V.W. | Truss up vile Whigs. |
X.Y.Z. | Exert your zeal. |
Another quaint and ingenious use of separate letters is recorded of the well-known preacher, Henry Ward Beecher.
Years ago, before his reputation had become world-wide, he was asked to give a lecture without charge, and assured that it would increase his fame. His reply was characteristic and very much to the point: “I will lecture for F.A.M.E.—fifty and my expenses!”
(1) | A cylindrical lock |
Where no key can be found, | |
(2) | An instrument treble |
And ringing in sound. | |
(3) | In story-land ranging, |
(4) | Now chopping and changing; |
(5) | Broken up, reunited, |
Quite whole I am found. |
Words, spelt with the same eight letters are indicated in these lines. There are two words in (1).
[III-23]
The following obscure legend was worked on an old sampler, in the red cross-stitch that found favour when our grandmothers were girls:—
Elizabeth out
Rue Constantine
Very thin gloves
Way Susan dart.
This was evidently some excellent moral precept, but it hung on its frame, a mere puzzle on the school-room wall, until an expert word juggler came that way, and solved the mystery by reading it off thus:—
“Eliza be thou true, constant in everything. Love sways us, and art.”
In the following lines the first missing word has two letters, and the letters are carried on, with one more added each time, and in varied order, throughout the verses, either in single words or in groups of words:—
[III-24]
Ingenious cryptic efforts have been made to prove that Bacon was the author of Shakespeare’s plays, but it has been reserved for us to reveal, by a convincing cryptogram, the modern wearer of his mantle.
The secret is disclosed by a line of capital letters shown below:—
Mac | B | eth. |
Oth | E | llo. |
Comedy of Er | R | ors. |
Merchant of Ve | N | ice. |
Coriol | A | nus. |
Midsummer Night’s D | R | eam. |
Merry Wives of Win | D | sor. |
Measure for Mea | S | ure. |
Much Ado about Not | H | ing. |
Antony and Cleop | A | tra. |
All’s Well that ends | W | ell. |
The missing words are spelt with the same five letters.
The missing words are spelt with the same six letters.
[III-25]
The following example of the use of phonetic capitals and figures is fresh and original. It contains more than eighty such symbols in its twenty-four lines:—
A MAID OF ARCADY
Each missing word has eight letters.
Each of these missing words is spelt with the same six letters.
[III-26]
Three hungry scholars came to a wayside inn, and saw this sign over the door:
PLACET ORE
STAT ORDINE
ORE STABIT
ORE AT ABIT
One of them eager to show his ready wit, translated these Latin words of welcome roughly into English verse:—
The complacent smile faded from his face as a village schoolboy, who had overheard him, broke in with the real rendering of the words:—“Place to rest at or dine; O rest a bit, or eat a bit!”
In these lines, where the dots occur, insert words, each of which is longer by one letter than the one before, and so complete the poem. The same letters are carried on each time in varied arrangement:—
[III-27]
FFAH | CHTI | WT | ||
HGU | ACT | ONE | ||
RASD | RIB | DLO | ||
A schoolmaster in the Midlands, who was a bit of a wag, wrote this on the blackboard, as a novel exercise for the boys of Standard VI. Can you decipher it?
Here is another ingenious specimen of missing words, spelt each of them with the same five letters:—
[III-28]
(On an Old Pie Woman)
BENE AT hint HEDU S.T.T.H. emo Uldy O
L.D.C. RUSTO F.N.E. L.L.B.
AC. hel orl AT Ely
W ASS hove N.W. how ASS Kill’d
Int heart SOF pi escu Star
D. sand Tart Sand K N ewe,
Ver yus E oft he ove N.W. Hens he
’Dliv’ Dlon geno
UG H.S. hem Ade he R la STP uffap
UF FBY HE RHU
S. B an D. M.
Uchp R.A. is ’D no Wheres He dot
H.L. i.e. TOM a Kead I.R.T.P. Iein hop est
Hat he R.C. Rust W I
L.L.B. ERA IS ’D——!
In these lines each missing word is spelt with the same six letters.
This is a bright little specimen of a missing words puzzle:—
Each missing word has the same four letters.
[III-29]
An old worn stone, with the inscription given below just legible, was found near to some ancient Roman remains, and was the valued possession of a local antiquarian, who was convinced that it dated back to the days of the Emperor Claudius:—
BENE
AT . HTH . IS . ST
ONERE . POS . ET
H . CLAUD . COS. TERT
R . I . P
ES . ELLE . RO
F . IMP
IN . G . TONAS . DO
TH . HISCO
N . SORTJ
A . N . E
His pride of possession was, however, shattered when a rival collector read it off into excellent English:—“Beneath this stone reposeth Claud Coster, tripe seller, of Impington, as doth his consort Jane.”
Here, as quite a novelty, is a double-barrelled missing words puzzle. As a puzzle, Part I. should stand alone, but the second part forms a thinly-veiled solution, which throws light upon the missing words. These are four in number and are spelt differently with the same six letters.
Part I
Part II
[III-30]
P | R | O | B | L | E | M |
R | E | C | E | I | V | E |
O | C | T | A | V | E | S |
B | E | A | C | O | N | S |
L | I | V | O | N | I | A |
E | V | E | N | I | N | G |
M | E | S | S | A | G | E |
This is a singularly perfect specimen of a seven-letter Word Square.
Each missing word is spelt with the same five letters.
[III-31]
Can you disentangle the eight-line verse which is scattered over these 64 squares? You must leap always from square to square, as a knight moves on the chess-board.
tle | to | a | cat- | life | and | live | In | |
By | tle | ow- | bro wse |
of | non | tle | fall | |
ter | tur- | gain | like | land | one’s | quiet | And | |
of | ar m |
Bet- | me ad- |
and | Than | a- | bat- | |
bask | Be t- |
lau- | or | tle | ness | done | wan- | |
rel | let | Than | die | With | der | of | smo ke |
|
ter | in | brain | myr- | on | and | har- | un- | |
Ch ap- |
or | to | sun | with | work | In | heat |
The verses begin with “Better to die,” and end with “tle” in the top left-hand corner.
The three missing words are spelt with the same seven letters.
Each missing word is spelt with the same six letters.
[III-32]
Can you complete this broken Word Square?
O | E | |||
O | E | |||
I | O | |||
E | E | |||
E | E |
The missing words in these lines are all spelt with the same six letters:—
Spelt with the same five letters.
[III-33]
If the letters on these squares are taken in proper sequence they will form the words of a well-known proverb:—
E | |||||||
E | T | ||||||
L | H | ||||||
E | R | S | |||||
E | A | S | |||||
D | E | O | S | ||||
S | P | M |
When a starting point has been chosen for trial of this puzzle, the successive letters must occupy the squares which in every case are reached by a knight’s move at chess, until a popular proverb is formed.
Each missing word has the same eight letters.
[III-34]
The following curiosity, which is known as Guarini’s Problem, dates back to the year 1512. On a board of 9 squares two white Knights are placed in the top corners, and two black Knights in the bottom corners, thus:—
The problem is to interchange, in as few moves as possible, the positions of the white and black knights.
We call particular attention to the construction of this very curious couplet, in which the spaces are filled by the same seven letters. In every case four of the letters of the missing words or phrases are the same, and keep the same order, and in all but the first the order of the letters is unchanged throughout, though the meaning always alters, as it does in that most perfect old Latin motto, “Persevera, per severa, per se vera,” “persevere through trials, true to thyself.”
[III-35]
Can you break up and recast the five words in this square, so that the fresh words form a perfect Word Square? The initials are A, M, E, N, D, S.
S | E | N | D | E | R |
O | N | I | O | N | S |
B | A | B | B | L | E |
M | A | N | N | E | R |
S | M | I | L | E | D |
L | I | N | E | A | L |
These missing words are spelt with the same four letters.
Good ——— for City ———
Each word or group is spelt with the same five letters.
[III-36]
Quite as cryptic and convincing as any of the curious Shakespeare-Bacon cyphers is the evidence which connects our great English poet with the forty-sixth Psalm of the authorised Bible version.
Shakespear, spelt thus, as it often was, contains four vowels and six consonants. This is the key to the position. If, guided by these figures, we turn to the forty-sixth Psalm and count from the beginning, we find the forty-sixth word is “Shake.”
Then, counting from the end, disregarding the “Selah,” which is no part of the text, we find that the forty-sixth word is “spear.”
Thus, by a startling and perfect succession of affinities, the poet’s name-number is linked again and again with this Psalm, until it reveals his name.
If any sceptic asks why the Book of Psalms should thus be turned to, the answer comes in the curious fact that the actual letters of the name William Shakespere, another of its different spellings, form this sentence as their anagram, and thus afford the necessary clue:—
“We are like his Psalm.”
A final point of interest is made when we notice that Shakespeare himself must have been just forty-six years old when the Psalms were re-translated.
Each missing word is spelt with the same six letters.
[III-37]
The letters on this board, if read aright in the order of a Knight’s moves at chess, will give a popular proverb.
R | L | T | E | Y | L | R | O |
Y | H | L | T | O | B | T | A |
T | A | A | A | H | T | I | |
E | L | E | I | N | E | O | |
D | H | W | Y | E | S | Y | |
R | T | E | S | D | B | W | |
Y | N | E | S | N | D | A | E |
H | A | A | A | W | I | D | E |
Start from the most central E, and you will be able to trace the proverb.
Each missing word is spelt with the same eight letters.
[III-38]
The pupils of Dr Puzzlewitz found one morning these vowels printed boldly on the blackboard:—
E | * | A | * | E |
* | A | * | E | * |
A | * | E | * | * |
* | E | * | * | E |
E | * | * | E | * |
Under it the doctor had written “Fill in the consonants, so that the words read alike from top to bottom, and from side to side.” How is this to be done?
Each of these missing words has five letters.
Each word has the same five letters.
[III-39]
The squarest word in any language is the Latin time, which, in connection with the three other Latin words, item, meti, emit, can be read, when written as a square, in every possible direction. Thus:—
T | I | M | E |
I | T | E | M |
M | E | T | I |
E | M | I | T |
As it seems impossible to go one better, we have been seeking, as a new nut for our store, some English word which may be a good second. Can you complete the square which is built up on these lines?
D | E | L | F |
* | * | * | * |
* | * | * | * |
* | * | * | * |
Delf is the key word, but it so far falls short of the perfection aimed at, that other letters are used in four of the vacant places. Still, it is so constructed that words which begin with D, E, L, or F appear each of them in four different directions, and is thus quite a notable example.
[III-40]
Can you fill in this diamond with four words that read alike from left to right, and from top to bottom?
D | ||||||
. | I | . | ||||
. | . | A | . | . | ||
D | I | A | M | O | N | D |
. | . | O | . | . | ||
. | N | . | ||||
D |
Each missing word is spelt with the same eight letters.
Each missing word contains the same six letters.
Each word has the same seven letters.
[III-41]
S | ||||||||
. | . | M | ||||||
P | . | . | . | L | ||||
. | . | N | . | . | A | L | ||
S | . | . | . | N | . | . | . | R |
M | . | . | . | C | . | E | ||
L | A | . | . | E | ||||
L | . | E | ||||||
R |
The places now occupied by dots are to be filled in with letters so that a complete diamond is formed, of words that read alike from left to right, and from top to bottom.
What is the missing word?
There are six letters in the missing words and phrases.
[III-42]
The following clever word square of the unusual number of seven letters, in which there is no undue straining of words or inflexions, is by a master hand, and would be difficult to match:—
P | A | L | A | T | E | D |
A | N | E | M | O | N | E |
L | E | V | A | N | T | S |
A | M | A | S | S | E | S |
T | O | N | S | U | R | E |
E | N | T | E | R | E | R |
D | E | S | S | E | R | T |
Each missing word is spelt with the same eight letters.
Each missing word is spelt with the same seven letters.
Each word or phrase has the same nine letters.
[III-43]
Can you fill in the places of these 21 asterisks with only 3 different letters, so arranged that they spell a common English word of 5 letters in 12 different directions?
* | * | * | * | * |
* | * | * | * | |
* | * | * | ||
* | * | * | * | |
* | * | * | * | * |
Two of the five letters are vowels.
Each space has the same nine letters.
The first letter is dropped in each case, so that while the word which ends line 1 has eight letters, the last word of line 4 has but five.
There was no good ... in the d...y, so the klim.
[III-44]
Some years ago a country parson had the following inscription engraved upon the tombstone of a favourite dog that died in 1885:—
CarLo
Dear DoggIe
LoVIng faIthfVL anD trVe
she Lost her sIght
bVt not her LoVe
for
I. e. V.
If the large capital letters are treated as Roman numerals, they add up to the year of the dog’s death, 1885.
If the missing letters, indicated by dots, are supplied, and the words are separated, this will be found to form a line in a well-known poem:—
.u.u.m.r.i.u.d.s.s.e..o.l.w.d.a.t.n.f.l.o.e.f.s.e.
Complete this sentence by filling in five words in the gaps, each spelt with the same five letters:
If you write ——— ——— at ——— do not ——— the ———.
Each missing word has the same five letters.
[III-45]
“Yes,” said the village wit, as a merry party sat round the tap-room fire at Stratford-on-Avon, “some wiseacres have tried to prove that Bacon wrote Shakespeare’s plays, because his name can be found hidden in some of the lines. Let me show you how easily this sort of thing can be arranged to suit our fancy.”
Taking a piece of chalk he wrote upon the door—
“Titus An | d | ronicus” |
“All’s Well th | a | t Ends Well” |
“The Mercha | n | t of Venice” |
“Corio | l | anus” |
“Cymb | e | line” |
“A Midsummer | N | ight’s Dream” |
“Much Ado ab | o | ut Nothing” |
“Look down the letters under d of these titles of some of Shakespeare’s plays,” he said, “and you will find the well-known name of one who certainly did not write them.” What name did he mean? What but that of the prince of jokers, Dan Leno!
Can you supply the missing words in these lines? Each is spelt with the same five letters:—
[III-46]
The following cryptic inscription was engraved, in his own language, upon a tablet in honour of the great French astronomer and scientist, Arago:—
URE
AR ERIL
It has this interpretation:—
AR | à gauche, |
ERIL | à droit, |
URE | sur tout. |
Arago chérit la droiture sur tout.
Arago cherished integrity above all.
Each word has the same five letters.
The missing words are spelt with the same six letters. What are they?
[III-47]
Here is a circle which it is quite possible to square:—
C | I | R | C | L | E |
I | . | . | . | E | . |
R | . | . | E | . | . |
C | . | E | . | . | E |
L | E | . | . | E | . |
E | . | . | E | . | . |
Can you fill it in with English words, that read alike from top to bottom, and from left to right? Try it before you turn to the solution. Every E must be worked in as it stands.
Each missing word has the same four letters.
[III-48]
We give as clues the complete border, and a diagonal in which the same letter persists. Can you construct the whole square?
B | O | A | S | T | E | R |
O | E | E | ||||
A | E | S | ||||
S | E | E | ||||
T | E | N | ||||
E | T | |||||
R | E | S | E | N | T | S |
Anagrams, as a method of divining and illustrating personal destiny and character, were quite a craze in the sixteenth and seventeenth centuries. No specimens of this word juggling have ever been more apt than the perfect pair of political anagrams evolved from the names of two of our greatest statesmen.
When the reins of power changed hands, it was found that the letters which form Gladstone also spell out exactly, “G. leads not,” while the name of his great rival and successor Disraeli itself announces, when recast, “I lead, sir!”
[III-49]
Here is a pretty card problem, akin in its character and arrangement to a Magic Square.
Take from a pack of cards the four aces, kings, queens, and knaves, and arrange them so that in each horizontal, vertical, and diagonal row, each of the four suits and each of the four denominations shall be represented once, and only once.
Ave Maria, gratiâ plena, Dominus tecum!
Virgo serena, pia, munda et immaculata. Regia nata, evadens luctum amari pomi. Eva secunda, Agni immolati pura mater.
Hail, Mary, full of grace, the Lord is with thee!
A virgin calm, holy, pure and spotless. Of royal kin, free from the penalty of the bitter apple. A second Eve, pure mother of the slain Lamb. |
||
These wonderful anagrams need no word of praise. Constructed each of them with the same letters, the lines express with startling emphasis the character and special attributes of her whom they describe.
[III-50]
I cut eight narrow strips of turf from my lawn, to form a double rose-border, with sides of the relative lengths shown in the diagram:—
How can I relay these eight pieces, without turning or breaking them, on a piece of level soil, so that they enclose three flower-beds of similar size?
This was engraved on a slate monument in memory of Marya Arundell, in Duloe, Cornwall, June 8, 1629:—
MARYA ARUNDELL—MAN A DRY LAUREL | ||
Man to the marigold compared may be,
Man may be likened to the laurel tree. Both feede the eye, both please the optic sense, Both soon decay, both suddenly fleete hence. What then infer you from her name but this, Man fades away, man a dry laurel is! |
||
[III-51]
Two schoolboys, looking into a small water-butt after a heavy rain, could not agree as to whether it was quite half full.
They appealed to the gardener, as there were no means of measurement at hand, and he, being a shrewd, practical man, was able to decide the point. How did he do this?
Paradise lost.
Reap sad toils.
Paradise regained.
Dead respire again!
[III-52]
Can you turn this flat-headed 3 into a 5 by one continuous line, without scratching out any portion of the 3?
What were “The Australian Cricketers?”
ANSWERED BY ANAGRAM
Clinkers! Each a true artist.
John Bunyan, in the conclusion of the advertisement of his “Holy War,” has these quaint lines (using i for j):—
“The Earl of Beaconsfield.”
Chief one of all debaters.
“William Ewart Gladstone.”
Wit so great will lead man.
[III-53]
These diagrams show two of the many ways in which eight pieces of chessmen or draughtsmen can be so placed upon the board that each of them has a clear course in every direction, along straight or diagonal lines.
We will give a table in the solutions which shows a large number of similar possible positions. Meantime our solvers may like to trace some for themselves.
Three most excellent anagrams are formed with the letters of the great name Thomas Carlyle. Two of them seem to point to the rugged sage of Chelsea in life, and one to his repose in death. They are:—
Mercy! lash a lot.
Cry shame to all!
A calm holy rest.
“Albert Edward and Alexandra.”
All dear bread and war tax end!
[III-54]
Three families, who were not on speaking terms, lived in three houses within the same enclosing fence. Determined to avoid each other, they built covered ways from the doors of their houses to their gates, so that they might never cross each other’s paths. The family in A had their gate at A, those in B at B, and those in C at C. How were these covered ways arranged so as to secure their complete separation?
William Ewart Gladstone.
A man will go wild at trees.
Lord Kitchener of Khartoum.
Oh firm rod! the knack to rule!
[III-55]
Ask some one to place five cards (not court cards) in a row, to add up their pips, and to place two cards representing that number below, for subtraction, as is shown in the diagram.
Let him then place cards to represent the result of subtraction, remove which one he pleases of these, and tell you the sum of the remaining pips.
You can at once tell him the value of the card removed by deducting the number of pips in that remainder from the next highest multiple of 9. Thus, in the instance shown above, if one of the sixes is removed, the sum of the remaining pips is 12, and 18 - 12 = 6. A space must be left for any 0.
Here is a batch of anagrams, all letters perfect, which show how, by a little ingenuity, words may be twisted into opposite and appropriate meanings.
“The Oxford and Cambridge annual boat-race.”
ANAGRAMS
Hard race, but Cantab gained lead from Oxon.
Ah! bad rudder line for Cantab cox to manage.
Cantab blue had raced in an extra good form.
[III-56]
This pretty puzzle can be made at home by anyone who is handy with a fret-saw.
Cut three pieces of hard wood according to the patterns given in this diagram, and try to fit the three sections together so that they form a firm symmetrical figure with six projecting ends.
“The Anglo-Japanese treaty of Alliance.”
Yea, Fate enjoins to help a gallant race
or
Hail, gallant East! Fear not, enjoy peace
or
A peace angel, then joy to all in far East.
If the letters which spell the names of the twelve months are shaken up and recast, these appropriate lines and their title are formed—
POEM
[III-57]
An Indian Nabob left a casket of valuable diamonds to his children under the following conditions:—The first was to take a diamond and one-seventh of the remainder; the second was to take two and a seventh of the then remainder; the third three and a seventh of the rest, and so on, on similar lines, till all the diamonds were taken. Each of the children had then exactly an equal share. How many diamonds were there, and how many children?
It would be difficult to find a more ingenious and appropriate anagram than this, which took a prize in Truth in 1902, and connects the King’s recovery with the Coronation.
The sentence was—
“God save our newly crowned King and Queen!
Long life to Edward and Alexandra!”
The letters of this were recast thus—
Can we wonder an anxious devoted England followed drear danger quakingly?
Sir Francis Bacon, the Lord Keeper.
Is born and elect for rich speaker.
“Imagination”—I’m on it again!
“Spring, Summer, Autumn, Winter.”
We murmur—“Time’s running past!”
[III-58]
The cardboard chain in this diagram is formed of unbroken links cut from one card.
There are no joinings in these links, no paste or gum is used, and the chain is fairly cut from a single card.
Very apt indeed, in these days of books and papers without end, is the descriptive anagram which we find involved in
“The Alphabet,” That be a help.
Made with the letters which form the names of the twelve months, each being used once, and only once:—
[III-59]
These represent the four quarters of a torn design, on which large black dots had been so drawn that no two of them stood on the same row, column, or diagonal.
Can you copy out these four pieces, and place them in close contact, so that the proper edges come together to reproduce the original effect?
[III-60]
A prisoner placed in the cell marked A is promised his release on the condition that he finds his way out of the door at X by passing through all the cells, entering each of them once only.
How can he do this?
The following remarkable anagram is recast from the name and title of the daughter of George IV., who was direct heir to the throne:—
“Princess Charlotte Augusta of Wales.”
ANAGRAM
P. C. her august race is lost, O fatal news!
[III-61]
When a farmer told his shepherd to put 21 sheep into 4 pens at the fair, and added, “I wish you could put an odd number into each pen, as there is luck in odd numbers, but that is impossible,” he did not take into account the shrewdness of the shepherd, who very cleverly folded them thus:—
Each fold or pen has by this arrangement an odd number of sheep within the hurdles that form its outer boundaries, and in this sense the farmer’s wish was satisfied.
We are familiar, most of us, with what is called Macaronic verse or prose, in which the letters and syllables of Latin words can be read so as to form English sentences.
It would seem to be too much to expect that there could be any connection in meaning between these Latin and English words, but there is one striking exception to this general rule. “Non est” means exactly “it is not,” and “No nest” conveys precisely the same idea, when a bird finds that its home has been destroyed.
[III-62]
Here is an interesting puzzle which can be worked out with coins or counters on a corner of a chess or a draughtboard.
At starting only the central point is vacant. A piece that is moved to a vacant spot must leap over two other pieces if it goes along the solid black lines, and can only move over one of the dotted diagonals at a time to an adjoining point. Try, on these lines, to enable the frog, now in the second hole of the lowest row, to reach the centre in the fewest possible moves, leaving its own original point vacant, and at the last surrounded by the words “leap-frog” as they now stand.
Moves can only be made to vacant places.
[III-63]
How did he justify this ambitious claim?
[III-64]
If the letters P E A R S O N S are printed on small wafers or buttons, and set at hap-hazard and out of order on the points which they now occupy, a very pretty game of patience will result from the attempt to restore them to their places.
Any letter can be pushed along one of the lines to a vacant place, and those on the mill sails can be moved to or from the central spot. There is no fixed limit to the number of moves, but the puzzle is to restore, in as few moves as possible, the broken and disordered word to its proper reading round the mill.
[III-65]
We are indebted to Sam Loyd, the famous American problem composer and puzzle king, for the following very practical curiosity, which is so closely akin to a puzzle that it is well worth giving for the benefit of our readers when they are out on holiday. If you are uncertain as to your bearings, lay your watch flat on the palm of your hand so that the hour-hand points in the direction of the sun. The point exactly midway between the hour-hand and the figure 12 will be due south at any time between 6 in the morning and 6 in the afternoon. During any other hours our rule will give the north point, and in the southern hemisphere the rules will be reversed.
In the days of Pope Pio Nono someone extracted from the Papal title “Supremus Pontifex Romanus” an anagram, which cut at the very foundation of the faith. It ran thus: “O non sum super petram fixus”—“O I am not founded on the rock.”
This held its place as a clever topical anagram, until in a moment of happy inspiration a son of the Church discovered that if the first words are recast and rearranged, a splendidly appropriate motto for the then reigning pontiff leaps to sight, “Sum Nono, super petram fixus,” “I am Nono, founded on the rock!”
[III-66]
This is an arrangement of numbers in 9 cells, so that no cell contains the same figure as appear in any other, and the two upper rows, the two side columns, the two long diagonals, and the four short diagonals all add up to 18:—
1 + 1 + 1 | 5 + 5 + 5 + 55 | 2 + 22 |
3 + 3 | 6 | 4 + 4 + 44 |
7 + 7 + 77 | 9 + 9 + 9 + 99 | 8 + 88 |
Though not, strictly speaking, a Magic Square, this is a most ingenious fulfilment of the conditions of the puzzle.
Good up-to-date anagrams are:—Chamberlain, “Rich able man,” and Pierpont Morgan, “Man prone to grip.”
[III-67]
In each of the five crosses of this mystic figure the same letters are to be inserted where there are asterisks, so that seven different English words are formed, which can be read altogether in 64 different ways and directions.
There will then be in all the five crosses 320 readings of these seven words, three of them having 80 variations and four of them having 20, and only three different letters are used.
“A Merry Christmas and a Happy New Year.” |
||
My prayer and wishes reach many a part. | ||
or | ||
Many a sad heart can whisper my prayer. | ||
[III-68]
We admit this most miserable picture of a discontented outcast into our bright pages, to “point a moral,” if it does not “adorn a tale.”
Can our readers gather from it the lesson, that when things seem to be at the worst, a turn of fortune’s wheel may set them on their legs again, and change the merest melancholy to the merriest mirth? A reverse of another sort will set things right. Turn the page round!
A lady, to whom the momentous question had been put with some diffidence, handed to her lover a slip of paper, telling him that it embodied her reply. Nothing was written but the word “stripes,” which seemed at first to be of sinister omen; but to his relief and joy the fateful letters presently resolved themselves into a message of direct encouragement, and never was an anagram more welcome than this which bade him “persist.”
[III-69]
With eight large wooden matches form a miniature raft, as is shown in the diagram:—
Place the little raft on a wine-glass, and apply a lighted match to one of its corners. The tension on its parts will cause the whole construction to fly asunder as soon as the pressure on any point is removed.
It is very remarkable that the letters which form the sentence—
“The Jubilee Day of Victoria, Queen and Empress,” also exactly spell—
Joys are never quite complete if a husband die.
[III-70]
Can you interpret it?
Logica, Latin for logic, can be resolved into the strangely contradictory anagram, caligo, darkness; and, in seeming support of this perversion, our word logic can be turned into I clog!
Here are two good anagrams connected with the land of the Pharaohs:—
David Livingstone,
“Go and visit Nile, D.V.”
Cleopatra’s Needle on the Thames Embankment,
“An Eastern emblem; then take me to Cheops’ land.”
Danes should be dark men, according to the anagram of “Denmark.”
[III-71]
This is good fun for old and young as a round game. Each player draws on the upper part of a slip of paper some fancy head and folds it back, leaving just enough in sight to guide his left-hand neighbour, who takes it and adds a body. Again the slips are handed on for the final addition of legs of any sort, some continuation being always indicated.
Then these completed patchwork pictures are thrown into a central bowl, shaken up, drawn out, and passed round for inspection and merry comment. The folds are the dotted lines.
The wounded and sick soldiers whom Florence Nightingale nursed so tenderly in the Crimea would have acclaimed her beautiful anagram—“Flit on, cheering angel!”
[III-72]
Mr Jolliboy, chubby and active, had been dancing until the small hours at a house in the suburbs, which was the home of sweet Lucy, the lady of his love.
The full moon shone down upon him as he walked happily to his own modest quarters, and the “man in the moon” seemed to smile and wink at him most knowingly.
Letting himself in presently with his latch-key, Mr Jolliboy was soon in bed and fast asleep, when in his dreams the full moon shone again, showing at one moment a likeness of his own round face, at another two smiling profile views of his Lucy, and at times all the three mixed.
Here, changed by a few touches, are the three moon-faces to be seen in one moon!
When the great Tichborne trial was still dragging its slow length along, a barrister with a turn for anagrams amused himself and his learned friends by constructing the following really remarkable specimen:—Sir Roger Charles Doughty Tichborne, Baronet, “Yon horrid butcher Orton, biggest rascal here.”
[III-73]
Among the many openings for pleasant fun in the home circle, there is none which appeals more easily to young and old than the good old puzzle of drawing off-hand some fanciful figure, based on five dots placed at random, which must fall on the face, hands, and feet of the subject chosen.
This spirited specimen shows how well it may be done, and similar efforts, more or less successful, will provoke much amusement. Try it with pencil or pen and ink.
Among the many points which have to be taken into account by those who in successive years are responsible for the selection of the Oxford eight, there is one which is thus neatly expressed by an anagram:—
“The Oxford and Cambridge annual boat-race.”
Much extra load on board can bring a defeat.
[III-74]
This is the astounding portrait of himself, which presented itself to our scientific professor in his dreams. What very poor justice it does to the real lines of his benevolent and shrewd old countenance will be seen in a moment if this weird picture is reversed.
Whenever we are making our plans, some of us for a holiday abroad, some for a few weeks at the seaside, there is a special interest in these descriptive anagrams:—
Davos Platz, Engadine.
“Stop, gaze, and live!”
Weston-super-Mare, Somerset.
“A sweet open summer’s resort.”
A very appropriate anagram that exactly describes its subject is this:—Cleopatra’s Needle, London—“An old lone stone replaced.” Very suggestive, too, are these short ones, which assure us that skeletons are “not sleek,” and that editors are “so tired!”
[III-75]
A soldier, a dog, and a door can be thus drawn by only three strokes of a pen:—
It is said that this originated with Hogarth, who made a bet with his boon companions that he would draw a soldier, a dog, and a door in three strokes. For the bayonet he drew a pike.
[III-76]
Why is this “Joker” like a poor joke?
Because he is in an E (inane).
Here are three ingenious instances of what may be called answers by anagram:—
What is the protector of “wealth?”
The law.
Where would a “cart-horse” be unhandy?
In an orchestra.
What is the “Daily Express?”
Pressa die lux.
Concise daily light.
(u is used for y.)
It is curious that Mary, a name so sweet and simple, has as its anagram “army.” The conflicting thoughts suggested by these two words are very happily harmonised by George Herbert in his quaint style:—
[III-77]
Here is quite a simple method of arranging nine matches so that they represent three squares.
The figure also includes at its sides two equilateral triangles.
Victoria the First, Queen of Great Britain and Ireland, and Empress of India. These letters also spell exactly:—
Here are two very perfect specimens:—
Earl Beaconsfield.
An able force is led,
or,
A free lance is bold.
[III-78]
When the plebiscite was taken in France to decide whether Napoleon III. should be Emperor, the number of votes cast in his favour was 7,119,791. Against him there were 1,119,000 votes.
If these numbers are written down quite plainly, as is shown above, with a dividing line, and without the three cyphers, and the paper or card on which they are strongly marked is reversed and held up against the light, the very word with which they were concerned, “empereur,” stands out with startling distinctness.
It can be drawn on thin cardboard with good effect.
A sa Majesté impériale le Tsar Nicolas, souverain et autocrat de toutes les Russies.
The same letters exactly spell—
O, ta vanité sera ta perte. O, elle isole la Russie; tes successeurs te maudiront à jamais!
This most remarkable anagram was published in the early days of the Crimean war.
This curiously apposite anagram was formed letter by letter from the surnames of the Oxford and Cambridge crews:—
April first nineteen hundred and five. How all warm, as arms, strong as light or dark blue crew’s, all ply oars on very smooth Thames! Oh! shall Cam’s boat lose?
[III-79]
Here is an excellent and amusing pastime for the winter evenings. Cover a square of stout cardboard with glazed black paper, and divide it as is shown in this diagram:—
With a little ingenuity and some sense of fun, any number of grotesque figures can be constructed with the pieces, such as those which we give here as samples. Try it.
The truth that there is often much in common between puzzles and politics is borne out by the following up-to-date anagram:—This Eastern question—“Is quite a hornet’s nest.”
Quite a good anagram, appropriate to the name of a great author, and one of his works runs thus:—
Charles Dickens: Oliver Twist.
“Now C. D. strikes till vice hears.”
Confessions of an Opium-Eater
The same letters recast spell—
If so man, refuse poison at once!
[III-80]
Can you, without measuring, say which two of these posts are farthest apart?
“Oyama is Field-Marshal.”
Fame aid his loyal arms!
“North Sea outrage.”
A ghost near route!
Madame Rachel.
Deal me a charm.
A. Tennyson.
Any sonnet.
“Notes and Queries”
A question sender.
Enquires on dates.
Reasoned inquest.
I send on a request.
[III-81]
Place the two parts of a common wooden match-box, empty, and in good condition, in the position shown below.
Now challenge any one to break them with a smart downward blow of the edge of the hand. What will happen? Try it.
It is well to take care that no people are sitting, or children standing, near the box, as it might fly into their faces.
An amusing sequence and a note of warning run through these three anagrams:—Sweetheart, “There we sat;” Matrimony, “Into my arm;” One hug, “Enough.”
[III-82]
The driver of a London ’bus the other day broke out into florid language as he nearly collided with a brand new motor omnibus.
One of the travesties of “motor-’bus” which he hurled at his rival is depicted in this diagram. What was it?
This letter-perfect anagram could not be more apposite if the words had been chosen from a dictionary:—“Abdul Hamid Khan, Sultan of the Ottoman Empire.”—“Inhuman despot, that maketh Armenia bloodful.”
The words in italics in—
find in Matrimony their anagram, which is also the solution of the lines.
[III-83]
A GOOD OLD PUZZLE
Mute hen. | |
Your posset. | Try our steak. |
One solid lamb. | Steamed or tossed. |
Mince sole. |
This is solved thus:—
The Menu. | |
Oyster soup. | Roast turkey. |
Boiled salmon. | Dressed tomatoes. |
Lemon ices. |
Each corresponding sentence is a perfect anagram.
Earl of Beaconsfield is spelt with the same letters as the sentence “O able dealer in scoff!”
If a lion with an ear for music were to hear the sound of an “oratorio,” he might say, as an answer by anagram, I roar too!
[III-84]
(Nigroque simillima cygno.)
Here is quite a good “shadowgraph.”
With a strong light and a little practice, any one may easily produce this effect with the shadow thrown by arms and hands.
What is Russia?—Russia is ursa (a bear).
What did a Prime Minister say of the Saturday Review?
That it was a very rude periodical.
What appropriate advice might be given by anagram to those who support the “Shakespeare-Bacon” controversy?
Soak cheaper beans.
[III-85]
Here is a particularly charming domino puzzle:—
Place any twenty stones, as is shown in the diagram, so that in every row their fronts and backs alternate. How can you change the picture by only two movements, so that, retaining its present form, you alter its chequers into stripes?
The answer by anagram to—What helps to make “bakers fat?” is Breakfast.
[III-86]
Here is an amusing method of turning wax matches to quaint account:—
If the wax is slightly melted, and perhaps shredded for some effects, all sorts of fanciful figures can be thus contrived.
What does an editor say to each “ream of paper?” Appear for me.
Here is a most ingenious will puzzle, by Lewis Carroll, which will be new to most of our readers. Each of the following five questions has to be answered by a different sentence, nine letters long, and each sentence is spelt with the same letters used in varied order:—
The anagram answers to the five questions in Lewis Carroll’s will puzzle are as follows:—
[III-87]
The good old Rebus—
may stand for the proverb—
“Honesty is the best policy.” (On ST is the best poll I see!)
[III-88]
Can you find eight animals that are concealed in this wood?
If we may go by its anagram the gardenia needs careful “drainage.”
[III-89]
Here is a good old sample of an effect produced by supple fingers in a strong light on the wall:—
Adjust the fingers as is shown, so as to secure the bright spot for the eye, and then life-like movements can easily be made with legs and ears.
The characteristic for the moment of the gaol-bird who began to tear his clothing, crying out, “I mean to rend it!” was determination, which contains exactly the same letters.
Those who, according to their anagram, are best equipped for a “sea trip” are Pirates.
What is most unlike a festival?—Evil fast.
The three words in italics in the verse below form also a long single word, of which the lines themselves give a vivid description:—
“Solitariness.”
[III-90]
Can you interpret this word-picture?
It represents the name of a famous man.
Termination.
We may expect to find “Anarchists” involved in rash acts according to their anagram.
When his patient has recovered, a “surgeon,” can say by anagram go nurse!
What momentous event of the last century forms in two words an anagram of the three words appropriate to it, “violence run forth?”
French Revolution.
[III-91]
Here is a picturesque head, which in a strong light can be thrown upon the wall by anyone who is handy with his fingers.
The peaked cap seems to suggest a French soldier.
What manner of men has “Eton” produced?
Men of tone and note.
What worries the “postman?”
No stamp.
What are to be seen at “Epsom Races?”
Some pacers.
[III-92]
As an excellent illustration of how much expression can be given by quite a few simple lines, if the pen or pencil is in artistic hands, we give the outlines of half a dozen eggs, on which by a few deft touches varied emotions of the human face are cleverly depicted.
Here is a hint for fun in the home circle, with a basket of eggs, a sheaf of pencils, and a prize for the best rapid design. There is room for two contrasting faces on each egg.
What did “Henry Wadsworth Longfellow” do for America?
He Won half the New World’s glory.
What was the happy result of patriotic “sentiment” in our colonies during the Boer war?
It sent men.
[III-93]
Take five straws, each about four inches long, and a shilling, and arrange them so that by holding an end of one of the straws you can lift them all.
The diagram given above shows how, by properly interlacing the five straws, the shilling may be so inserted as to form a wedge which locks them all together.
What can you say when using a “fire-escape?”
I creep safe.
What is the extreme of “slow reading?”
A single word.
How might a “Poorhouse” in olden days have been described by its own letters?—O sour hope!
What is “Old England” to her sons and daughters?—Golden land.
The battle of “Inkermann” tells by its anagram of men in rank.
[III-94]
In the problem known as “The Flighty Nuns,” the Abbess in the central cell was satisfied so long as she could count nine of her charges in the cells on each of the four sides. Here are diagrams which show how the thirty-six inmates could on these terms absent themselves without discovery, 2, 4, 8, 10, 12, 16, and even 18 at a time by re-arrangement of their numbers in the cells.
0 | 9 | 0 | 1 | 8 | 0 | 2 | 5 | 2 | ||
9 | A | 9 | 8 | A | 8 | 5 | A | 5 | ||
0 | 9 | 0 | 0 | 8 | 1 | 2 | 5 | 2 | ||
2 | 5 | 2 | 2 | 4 | 3 | 3 | 3 | 3 | ||
5 | A | 5 | 4 | A | 4 | 3 | A | 3 | ||
2 | 5 | 2 | 3 | 4 | 2 | 3 | 3 | 3 | ||
2 | 2 | 5 | 4 | 1 | 4 | 5 | 0 | 4 | ||
2 | A | 2 | 1 | A | 1 | 0 | A | 0 | ||
5 | 2 | 2 | 4 | 1 | 4 | 4 | 0 | 5 |
The clue by anagram to those in search of “hidden treasure” who sought to discover a dish-cover is dish under a tree.
[III-95]
To stop a serious leak a carpenter sought for a board a foot square. The only piece he could find was two feet square, but it was pierced with sixteen holes, as in the diagram below:—
How did he contrive to cut a square from this of the necessary size?
The answer by anagram to “What should we all welcome, if the Chancellor of the Exchequer could ‘introduce’ it into his Budget?” is reduction.
Things that we know to be “transient” must be looked at, according to their anagram, instanter.
Sweet Mary, the Maid of the Mill, arranged an ingenious signal by song, by which, in olden days, she could assure her father that all was well when mischief was abroad. If he heard her singing, “Do, re, mi, fa, sol, la, si,” he was sure that nothing was amiss. When these syllables are shaken up, and recast as an anagram, what reassuring sentence do they form?
The musical syllables, sung as a reassuring signal to her father, by Mary, the Maid of the Mill, “Do, re, mi, fa, sol, la, si,” when shaken up and recast as an anagram form the sentence “A mill door is safe.”
[III-96]
Of the many “match puzzles” the following seems to be the most confusing to the ordinary solver, and any variation of its original position is enough to create fresh confusion.
Re-arrange three of these matches and form four squares.
The enigma anagram—
is solved by Pharisees.
The question—Where did we buy “our fancy mat?”—is answered by anagram at the manufactory.
[III-97]
Construct this figure with five matches:—
Remove three of the matches, and then replace two of them so as to form a similar figure.
A common and much-appreciated “dose at meat shop” is, according to its anagram, mashed potatoes.
Tiglath-Pileser was the name of the king which can be resolved into the anagram, “I till the grapes.”
“Art? I begin art!” is an anagram for Great Britain.
If heartily administered, nine thumps, the anagram of “punishment,” would fall deservedly upon the shoulders of a wife-beater.
Our strongest “armaments” are men-at-arms.
[III-98]
Can you build a bridge with three wooden matches, which shall connect three wine-glasses, and be solid enough to support a fourth set upon it?
This picture shows how it is to be done.
The elephant, according to its anagram, is the animal to which the command “Leap then!” would be the least appropriate.
The answer by anagram to “Whom should we employ to make ‘alterations’ in our overcoats?” is Neat tailors.
Where do we go to remedy “disease?”
To the seaside.
Who should make a good “manager?”
A German.
[III-99]
Here is quite a simple match problem:—
Can you remove eight of these matches, that now form nine squares, so as to leave only two squares upon the table?
When Cato and Chloe, at the Popular Café, decided to order for their afternoon tea a pot of what is formed by the mixture of the letters of their names, they called for Chocolate.
The answer by anagram to “Why may the scenery round Bournemouth be said to be ‘quite spruce’?” is—because it is picturesque.
Lord Roberts’ motto, “Virtute et Valore,” is by its anagram True to avert evil, a happy indication of his character.
[III-100]
To arrange ten matches on a table, so that with one hand you can lift nine of them with the tenth, lay them, as is shown in Fig. 1, with the heads of eight pillowed on one, and pointing in opposite directions, and the tenth placed across the ridge at the top.
Then lift all, as shown in Fig. 2.
The enigma—
is solved by Male, lame.
The answer by anagram to the question, “Whom do ‘our big hens’ frequently annoy?” is neighbours.
[III-101]
This is the way to draw in three strokes an old woman looking out of a window:—
Here is a puzzle anagram:—
Peach—cheap.
The eglantine is the flower which quite contradicts its anagram, inelegant.
The touching epitaph in memory of little Alice formed from the letters of her name was à ciel!
[III-102]
Treated as an anagram the words “Cats on truck” can be recast into Nuts to crack, and the surrounding motto, “Yes! we sparkle on” into Pearsons Weekly; so that the whole design resolves itself into—Nuts to crack, in Pearson’s Weekly.
The old saying that a man who is his own doctor has a fool for his patient, seems to be borne out by the curious fact that the words, “Dangers of amateur physicking,” resolve themselves into the perfect anagram—“The sick men pay for drugs again.”
What every “undergraduate” hates—
A great rude dun.
The food for a crocodile which seems to be indicated by its name is cool’d rice!
[III-103]
Here is a very simple and ingenious method of representing roughly an officer with drawn sword.
Six wax vestas, shredded to form the hair and sword-belt, are fastened together by the application of a little heat.
Anyone with handy fingers and an ingenious turn of mind can easily construct other quaint figures in this style.
“Time and tide wait for no man.”
ITS ANAGRAMS
A fine mandate to mind, I trow.
and
A firm intent made, a “do it now.”
[III-104]
Here are three excellent shadowgraphs, which can be produced with good effect by flexible fingers in a strong light on the wall.
“Norway’s Olaf is in old England.”
ITS ANAGRAMS
Elf-lad, so loyal and so winning.
A darling son and noisy fellow.
Of winning lads, lead, royal son!
On London’s air wing safely lad.
Why should city life be happy?
Because the same letters spell felicity.
What is the best proof that “real stickphast paste sticks?”
The same letters spell—Keep this, stick scraps at last!
[III-105]
What place have our puzzles “in magic tale?”
They are enigmatical.
What great assembly would seem from its name to consist of “partial men?”
Parliament.
What did Douglas Jerrold, by his name anagram, declare himself to be?
Sure, a droll dog I!(i for j)
What in the old-fashioned days caused “the wig” to be discarded?
Weight.
The following curious peace anagrams are appropriate in these days of disturbance. Each set of words between inverted commas contain exactly the same letters:—
Why does the old proverb “Birds of a feather flock together” form a mystic link between us and our cousins in America?
Because the same letters recast spell out the patriotic sentence, It rocks the broad flag of the free!
What, by their anagram, are “platitudes?”
Stupid tales.
[III-106]
Why is there a measure to “disappointment?”
Because it is made in pint pots.
What is the purpose of a “catalogue?”
It is got as a clue.
If “porcus” is Latin for pig, what is Latin for its body?
Corpus.
What may “laudation” easily become?
Adulation.
What is “revolution?”
To love ruin.
Define “The Griffin” (Temple Bar).
Fine fright.
Why is there room for variety in “twelve sentences?”
Because we can select new events.
How do we know that “potatoes” in the singular should not have an “e” at the end?
Because they spell O stop at e!
What should be done to a “misanthrope?”
Spare him not.
What was the owl of “Minerva?”
A vermin!
This is solved by the anagram words nuts, stun, sunt, tuns. (Sunt is Latin for “they are.”)
A discussion arose one day, in the winter season, between several members of a West-end Club, as to the value of flannel underwear. A London physician, who was appealed to, upheld the need for this, and it was afterwards found that his name, Alfred James Andrew Lennane, treated as an anagram, becomes “Man needs aired flannel wear.” This was singular, but a much more curious coincidence of similar sort was discovered by an expert in anagrams.
Another member took quite an opposite view, and declared that all should wear linen. By a wonderful chance his name, Edward Bernard Kinsila, resolves itself into the actual words that came from his lips—“A d—— bad risk Dr., wear linen!”
AN ANAGRAM | ||
“Christmas comes but once a year.” So by Christ came a rescue to man. |
||
[III-108]
Able was I ere I saw Elba.
Madam, I’m Adam!
When Charles Grant, Colonial Secretary, was made Lord Glenelg, in 1835, he was called Mr Facing-both-ways, because his title Glenelg was a perfect palindrome, that could be read with the same result from either end.
It was a member of the same family who sought to prove the antiquity of his race by altering an “i” into an “r” in his family Bible, so that the text ran, “there were Grants on the earth in those days.”
“Roma, ibi tibi sedes, ibi tibi amor,” which may be rendered, “At Rome you live, at Rome you love;” is a sentence which reads alike from either end.
Eve damned Eden, mad Eve!
This sentence reads alike from either end.
A good specimen of a palindrome is this German saying that can be read from either end:—
Bei Leid lieh stets Heil die Lieb
(In trouble comfort is lent by love.)
[III-109]
Here are some ingenious palindromes, which can be read from either end:—
Repel evil as a live leper.
Dog, as a devil deified, lived as a god.
Do Good’s deeds live never even? Evil’s deeds do O God!
“Subi dura a rudibus”
“I have, endured roughness from the rod” which can be read alike from either end.
Very notable as a long palindrome, even if it is not true record of the great surgeon’s experience, is this quaint sentence:—“Paget saw an Irish tooth, sir, in a waste gap.”
Snug & raw was I ere I saw war & guns.
This sentence reads alike from either end.
Very remarkable for its length and good sense combined is the following palindrome, which can be read from either end with the same result:—“No, it is opposed, art sees trades opposition.”
Perhaps the most perfect of English palindromes is the excellent adage—
“Egad, a base tone denotes a bad age.”
[III-110]
Here is the most remarkable Latin palindrome on record:—
SATOR AREPO TENET OPERA ROTAS
Its distinguishing peculiarity is that the first letters of each successive word unite to form the first word, the second letters spell the second word, and so on throughout the five words; and as the whole sentence is a perfect palindrome, this is also true on reversal.
[III-111]
The well-known book and its author which are represented by
are “Innocents Abroad,” by Mark Twain. (In no sense A broad, by mark twain.)
No.
John Mar
in atten
from 8 a.m.
Barber
Hair C
The bald cry a
for hi
as displayed
which make hair g
Closes
I
shall
dance
daily
and
utter
loud
s creams
in this window
listen
after 8 p.m.
The shutter on the left blew open, leaving the other to tell its strange tale.
[III-112]
A man, tracing step by step the various readings of ROTATOR on this chequered floor, can exhaust all of them, according to the arrangement on our diagram, in 21,648 steps, spelling out the word as he goes in the many directions 3608 separate times!
R | O | T | A | T | O | R | O | T | A | T | O | R |
O | R | O | T | A | T | O | T | A | T | O | R | O |
T | O | R | O | T | A | T | A | T | O | R | O | T |
A | T | O | R | O | T | A | T | O | R | O | T | A |
T | A | T | O | R | O | T | O | R | O | T | A | T |
O | T | A | T | O | R | O | R | O | T | A | T | O |
R | O | T | A | T | O | R | O | T | A | T | O | R |
O | T | A | T | O | R | O | R | O | T | A | T | O |
T | A | T | O | R | O | T | O | R | O | T | A | T |
A | T | O | R | O | T | A | T | O | R | O | T | A |
T | O | R | O | T | A | T | A | T | O | R | O | T |
O | R | O | T | A | T | O | T | A | T | O | R | O |
R | O | T | A | T | O | R | O | T | A | T | O | R |
This large total is due mainly to the fact that ROTATOR is a palindrome, and lends itself to both backward and forward reading. The man, a veritable rotator, will thus have walked more than four miles within a compass of one hundred and forty-four square feet.
[III-113]
AL. IT. | |||
T.L | EW. O. MA! | ||
N.T. | Ho! UGH. AVE. Ryli. | ||
T.T. | Let. Hi! N.G.I. | ||
S.S. | We. Et. Erf. Art. Ha! | ||
N.S. | Ug. Ara. N.D.F. Lo! | ||
W.E. | R.S.T. Ha! TB. | ||
L.O. | O! Mins. Pri. | ||
N. G. | |||
The cross-stitch legend on the old sampler, if its letters are read in regular sequence, runs thus:—
This diagram shows how, while the odd and even numbers of the nine digits add up to 25 and 20 respectively, they can be arranged in two groups so that the odd and the even add up to exactly the same sum.
1 | 2 | ||||
3 | |||||
5 | 4 | 79 | |||
7 | 6 | 84 | 2⁄6 | ||
9 | 8 | 5 | 1⁄3 | ||
25 | 20 | 84 | 1⁄3 | 84 | 1⁄3 |
[III-114]
The puzzle lines—
when read according to the usual pronunciation of Mr and Mrs, and taking the title from the Greek, become, by affinity of sound—
The puzzle epitaph—
WEON | . | CEW | . | ERET | . | WO | |||
WET | . | WOM | . | ADEO | . | NE | |||
NON | . | EFIN | . | DUST | . | WO | |||
NO . | WLI | . | F | EB | .EGO | . | NE | ||
WILLIAM and MARGARET TAYLOR |
|||||||||
Anno Domini 1665. | |||||||||
reads thus—
[III-115]
IT - OBIT - MORTI - MERA PUBLI - CANO - FACTO - NAM AT - RES - T - M - ANNO - XXX ALETHA - TE - VERITAS TE - DE - QUA - LV - VASTO MI - NE - A - JOVI - ALTO PERAGO - O - DO - NE - AT STO - UT - IN - A - POTOR - AC AN - IV - VAS - NE - VER - A |
||
R - I - P | ||
reads into English thus:—
“I Tobit Mortimer, a publican of Acton, am at rest. Man, no treble X ale that ever I tasted equal was to mine. A jovial toper, a good one at stout in a pot or a can, I was never a rip!”
If you start with the first T in this combination, and then take every third letter—
HOUSE.CANOE.AFTER.
HOUR.PRINT.CAVE.CHILD
SASH.SLEVE.ACORN.
AMPLE.SAD.TATTA.HENA
MAT.ACHE.CAKE.TACHES.
HELIAC.SACQUE.USUAL.
ARBOR.SEE.MULCH.JACUR.
USE.STOP.
[III-116]
you will form the popular quotation, “Thrice is he armed that hath his quarrel just.”
The excellent double Acrostic—
is solved thus:—
CORNIX | ||||
1. | C | or | N | |
2. | (R) | O | — | I |
3. | R | e | X |
We may tell those of our readers who have not studied the dead languages that cornix is the Latin for a crow, and that the word can be broken up into cor, heart, and nix, snow, while rex is, of course, a king in Latin, as roi is in French. The double meaning of corn is brought out by “against the grain.”
The five hidden proverbs are:—
“A rolling stone gathers no moss.”
“Too many cooks spoil the broth.”
“A live dog is more to be feared than a dead lion.”
“You cannot eat your cake and have it.”
“Peace hath her victories no less renowned than war.”
Start from the central A, and work round and round.
[III-117]
Read backwards it becomes “Old birds are not caught with chaff.”
(On an Old Pie Woman)
BENE AT hint HEDU S.T.T.H. emo Uldy O
L.D.C. RUSTO F.N.E. L.L.B.
AC. hel orl AT Ely
W ASS hove N.W. how ASS Kill’d
Int heart SOF pi escu Star
D. sand Tart Sand K N ewe,
Ver yus E oft he ove N.W. Hens he
’Dliv’ Dlon geno
UG H.S. hem Ade he R la STP uffap
UF FBY HE RHU
S. B an D. M.
Uchp R.A. is ’D no Wheres He dot
H L. i.e. TOM a Kead I.R.T.P. Iein hop est
Hat he R.C. Rust W I
L.L.B. ERA IS ’D——!
This puzzle epitaph, written aright, runs thus:—
[III-118]
tle | to | a | cat- | life | and | live | In | |
By | tle | ow- | bro wse |
of | non | tle | fall | |
ter | tur- | gain | like | land | one’s | quiet | And | |
of | ar m |
Bet- | me ad- |
and | Than | a- | bat- | |
bask | Be t- |
lau- | or | tle | ness | done | wan- | |
rel | let | Than | die | With | der | of | smo ke |
|
ter | in | brain | myr- | on | and | har- | un- | |
Ch ap- |
or | to | sun | with | work | In | heat |
The “Knight’s Tour” verses run as follows:—
beginning with “Bet,” and ending in the top left-hand corner.
[III-119]
The Broken Word Square is made perfect thus—
S | O | B | E | R |
O | L | I | V | E |
B | I | S | O | N |
E | V | O | K | E |
R | E | N | E | W |
E | |||||||
E | T | ||||||
L | H | ||||||
E | R | S | |||||
E | A | S | |||||
D | E | O | S | ||||
S | P | M |
To solve the “Knight’s Tour” proverb start with M, and by a succession of moves, as of a knight on the chess-board, you can spell out the proverb “More haste less speed.”
[III-120]
The solution of Guarini’s Problem, to transpose the positions of the white and black knights on the subjoined diagram on which they appear, is made clear by following the moves on the lettered diagram:—
First move the pieces from a to A, from b to B, from c to C, and from d to D. Then move them from A to d, from B to a, from C to b, and from D to c. The effect so far is as if the original square had been rotated through one right angle. Repeat the same sequence of moves, and the required change of positions is completed.
This is the solution of the Word Square.
A | M | E | N | D | S |
M | I | N | I | O | N |
E | N | A | B | L | E |
N | I | B | B | L | E |
D | O | L | L | A | R |
S | N | E | E | R | S |
[III-121]
The letters on the board below, read aright in the order of a Knight’s moves at chess, starting from the most central E form the following popular proverb:—
R | L | T | E | Y | L | R | O |
Y | H | L | T | O | B | T | A |
T | A | A | A | H | T | I | |
E | L | E | I | N | E | O | |
D | H | W | Y | E | S | Y | |
R | T | E | S | D | B | W | |
Y | N | E | S | N | D | A | E |
H | A | A | A | W | I | D | E |
Dr Puzzlewitz completed his Word Square thus:—
E | R | A | S | E |
R | A | V | E | N |
A | V | E | R | T |
S | E | R | V | E |
E | N | T | E | R |
[III-122]
This is completed thus:—
D | E | L | F |
E | V | I | L |
L | I | V | E |
F | L | E | D |
It will be seen that there are four distinct readings of each word.
The Diamond is completed thus:—
D | ||||||
T | I | P | ||||
T | I | A | R | A | ||
D | I | A | M | O | N | D |
P | R | O | U | D | ||
A | N | D | ||||
D |
The Defective Diamond is completed thus:—
S | ||||||||
G | E | M | ||||||
P | E | R | I | L | ||||
G | E | N | E | R | A | L | ||
S | E | R | E | N | A | D | E | R |
M | I | R | A | C | L | E | ||
L | A | D | L | E | ||||
L | E | E | ||||||
R |
[III-123]
The word is Level, filled in thus:—
L | E | V | E | L |
E | E | E | E | |
V | V | V | ||
E | E | E | E | |
L | E | V | E | L |
The Circle can be squared thus:—
C | I | R | C | L | E |
I | N | U | R | E | S |
R | U | L | E | S | T |
C | R | E | A | S | E |
L | E | S | S | E | E |
E | S | T | E | E | M |
This is the completed Square:—
B | O | A | S | T | E | R |
O | B | S | C | E | N | E |
A | S | S | E | R | T | S |
S | C | E | P | T | R | E |
T | E | R | T | I | A | N |
E | N | T | R | A | N | T |
R | E | S | E | N | T | S |
[III-124]
Here is the arrangement of the aces, kings, queens, and knaves of a pack of cards in a kind of Magic Square:—
CLUBS ACE |
SPADES KING |
HEARTS QUEEN |
DIAMONDS KNAVE |
HEARTS KNAVE |
DIAMONDS QUEEN |
CLUBS KING |
SPADES ACE |
DIAMONDS KING |
HEARTS ACE |
SPADES KNAVE |
CLUBS QUEEN |
SPADES QUEEN |
CLUBS KNAVE |
DIAMONDS ACE |
HEARTS KING |
In each row, column, and diagonal, one, and one only, of the four suits and of the four denominations is represented.
The eight thin strips of turf, cut from my lawn to form the four sides of two square rose-borders, can be placed on a level surface of soil thus without being broken or bent:—
This forms a framework for the three flower-beds of similar shape and size.
[III-125]
The gardener decided that the water-butt was more than half-full thus:—
He tilted it steadily, and some of the water ran over its edge before the bottom corner A came into sight; but as soon as the water level stood at A B the cask was exactly half full.
The flat-headed 3 can be turned into a 5 by one continuous line, without scratching out any portion of the 3, by treating the flat top of the 3 as part of a square drawn round the 5, thus:—
[III-126]
Here is a list of ninety-two positions, in which eight pieces can be placed upon the chess or draughtboard so that each has a clear course in every direction.
1 | 1586 | 3724 | 24 | 3681 | 5724 | 47 | 5146 | 8273 | 70 | 6318 | 5247 |
2 | 1683 | 7425 | 25 | 3682 | 4175 | 48 | 5184 | 2736 | 71 | 6357 | 1428 |
3 | 1746 | 8253 | 26 | 3728 | 5146 | 49 | 5186 | 3724 | 72 | 6358 | 1427 |
4 | 1758 | 2463 | 27 | 3728 | 6415 | 50 | 5246 | 8317 | 73 | 6372 | 4815 |
5 | 2468 | 3175 | 28 | 3847 | 1625 | 51 | 5247 | 3861 | 74 | 6372 | 8514 |
6 | 2571 | 3864 | 29 | 4158 | 2736 | 52 | 5261 | 7483 | 75 | 6374 | 1825 |
7 | 2574 | 1863 | 30 | 4158 | 6372 | 53 | 5281 | 4736 | 76 | 6415 | 8273 |
8 | 2617 | 4835 | 31 | 4258 | 6137 | 54 | 5316 | 8247 | 77 | 6428 | 5713 |
9 | 2683 | 1475 | 32 | 4273 | 6815 | 55 | 5317 | 2864 | 78 | 6471 | 3528 |
10 | 2736 | 8514 | 33 | 4273 | 6851 | 56 | 5384 | 7162 | 79 | 6471 | 8253 |
11 | 2758 | 1463 | 34 | 4275 | 1863 | 57 | 5713 | 8642 | 80 | 6824 | 1753 |
12 | 2861 | 3574 | 35 | 4285 | 7136 | 58 | 5714 | 2863 | 81 | 7138 | 6425 |
13 | 3175 | 8246 | 36 | 4286 | 1357 | 59 | 5724 | 8136 | 82 | 7241 | 8536 |
14 | 3528 | 1746 | 37 | 4615 | 2837 | 60 | 5726 | 3148 | 83 | 7263 | 1485 |
15 | 3528 | 6471 | 38 | 4682 | 7135 | 61 | 5726 | 3184 | 84 | 7316 | 8524 |
16 | 3571 | 4286 | 39 | 4683 | 1752 | 62 | 5741 | 3862 | 85 | 7382 | 5164 |
17 | 3584 | 1726 | 40 | 4718 | 5263 | 63 | 5841 | 3627 | 86 | 7425 | 8136 |
18 | 3625 | 8174 | 41 | 4738 | 2516 | 64 | 5841 | 7263 | 87 | 7428 | 6135 |
19 | 3627 | 1485 | 42 | 4752 | 6138 | 65 | 6152 | 8374 | 88 | 7531 | 6824 |
20 | 3627 | 5184 | 43 | 4753 | 1682 | 66 | 6271 | 3584 | 89 | 8241 | 7536 |
21 | 3641 | 8572 | 44 | 4813 | 6275 | 67 | 6271 | 4853 | 90 | 8253 | 1746 |
22 | 3642 | 8571 | 45 | 4815 | 7263 | 68 | 6317 | 5824 | 91 | 8316 | 2574 |
23 | 3681 | 4752 | 46 | 4853 | 1726 | 69 | 6318 | 4275 | 92 | 8413 | 6275 |
The numbers indicate the position on the eight successive columns of the cells on which the men are to be placed. Of course, many similar arrangements arise from merely turning the board.
[III-127]
This diagram shows, by the dotted lines, how the three unfriendly neighbours made the covered pathways to their gates, so that they might never meet or cross each other’s paths.
The Cross Keys puzzle when put together takes the form shown below.
The method is as follows:—Hold a upright between forefinger and thumb of left hand. With the right hand push b through the slot until the further edge of the middle slot is nearly even with the outer edge of a. Then lower c, held with the short arm of the cross nearest to you, over the top of a, so that the central portion passes through the cross cut in b. Finally[III-128] push b towards the centre, until the transverse cut is hidden, and the puzzle is completed.
When the children of the Indian Nabob divided his diamonds, the first taking one stone and a seventh of the remainder, the second two stones and a seventh of what was left, the third three under similar conditions, and so on till all were taken, there were 36 diamonds and 6 children.
The division is prettily illustrated thus:—
This shows how the first three took their shares, indicated by black dots, the remainder being carried down each time, and by similar process three more claimants would exhaust all the diamonds.
[III-129]
To solve the Card Chain puzzle take a card about 5 in. by 3 in., as shown below, draw a light pencil line from A to B and from C to D, lay the card in water till you can split its edges down to the pencil lines, and put it aside to dry.
With a sharp knife cut quite through the straight lines, but only half through the dotted lines on the split edges. The corresponding figures show the bar of each link, marking its two parts, which are connected by the upper and under halves of the split portion. A little patient ingenuity will now release link after link, and thus complete the chain.
[III-130]
The prisoner who is placed in the cell marked A, and is promised his liberty if he can reach[III-131] the door at X by passing through all the cells, entering each once only, gains his freedom by passing from A to the cell below, and thence returning to A, and leaving it again by the other door; his further course then is quite simple.
Move 9 to 13, 3 to 9, 7 to 3, 22 to 7, 18 to 22, 24 to 18, 9 to 24, 13 to 9, 7 to 13, 3 to 7, 18 to 3, 22 to 18.
is explained by the couplet—
[III-132]
This is the key
M | ||||
A | ||||
M | A | D | A | M |
A | ||||
M |
If these letters form each of the five crosses the conditions are all fulfilled.
In each cross the words Madam, Adam, Ada can be traced in sixteen different directions, and the words Dam, am and a in four directions, so that there are no less than three hundred and twenty readings of these words in the whole mystic cross, and sixty-four in each separate cross, though only three different letters are used.
“A misunderstanding between friends.”
[III-133]
It was Incubus that the driver of a London Road car hurled as a scornful charge, at his rival on a motor car.
Put a finger on one of the black backs in the top row, and move that stone round to the bottom of its column, then push upward, so that each stone rises into the row above it. Repeat this with the other back, and the stripes are formed.
[III-134]
The eight animals hidden in this wood are-- Giraffe, Lion, Camel, Elephant, Hog, Horse, Bear, Hound.
The solution is Wellington.
[III-135]
The carpenter, anxious to stop a leak, was able to cut a board a foot square from a board two feet square, which was pierced at regular intervals by sixteen holes, by the following ingenious method:—
The solution of the puzzling match rearrangement is as follows:—We repeat the original five square diagram, from which four squares were to be formed by rearranging three matches, and its solution below.
[III-136]
When we have constructed this figure with five matches, we can remove three of the matches, and then replace two of them so as to form a similar figure, by moving any three of them a short distance, and then replacing the two that are left behind, in their original positions! This “catch” finds many victims.
The diagram below shows how eight matches can be removed from the nine-square arrangement so as to leave two squares on the table.
[III-137]
[III-138]
[III-139]
[III-140]
[III-141]
The missing words of the lines “In praise of Sussex,” are apers, rapes, spear, spare, pears, reaps, parse, pares, all spelt with the same letters.
The missing words are there, ether, and three.
The missing words are trades, daters, treads, darest, and read’st.
The missing words are mace, acme, and came.
The missing words are esprit, sprite, priest, stripe, and ripest.
The “Fresh Air Fund” missing words are given below in italics:—
OH THE LUSTRE OF THE RESULT
[III-142]
She rouges in vain, “Men are rogues, and as shy As grouse in October,” she says with a sigh.
[III-143]
The missing words indicated in the lines which begin
are a ringlet, triangle, relating, altering, and integral, which are all spelt with the same eight letters.
The lines with missing words, which are increased each time by one letter, run thus:—
The missing words are bared, beard, debar, bread.
[III-144]
The missing words are indicated below by italics:—
It would be difficult to find a better specimen than this of seven words spelt with the same letters.
In these lines each of the words in italics is longer by one letter than the one before, the same letters being carried on in varied order:—
[III-145]
The missing words are smite, times, emits, items, and mites.
The missing words of the Farmyard puzzle are printed in italics:—
The four missing words are silent, listen, enlist, and tinsel, which are all spelt with the same letters.
The missing words are nectar, Cretan, canter, trance, recant.
[III-146]
The missing words, dedicated to the Fresh Air Fund, read thus:—
[III-147]
GOOD TIMES FOR CITY MITES
[III-148]
This is the full text of Moore’s witty reply, when Limerick courted him as her member, and the “boys for fun’s sake” asked him to what party he belonged:—
[III-149]
The drop letter lines are as follows:—
The solution of the enigma with missing letters:—
“There was no good ... in the d...y, so the klim,” is—
There was no good air in the dairy, so the milk turned.
But unmerciful disaster followed fast and followed faster.
If you write stale tales, at least do not steal the slate.
The six missing words are Siren, risen, Erin’s, reins, rinse, resin.
[III-150]
The missing words are Cesar, acres, races, cares, scare.
PRINTED BY M‘LAREN AND CO., LTD., EDINBURGH.
Inconsistent spelling, hyphenation, capitalisation, etc. and lay-out have been retained, except as mentioned below. The same applies to repetitions, factual errors, mistakes, unclarities and contradictions in the puzzles, riddles etc. and in the solutions provided.
Depending on the hard- and software and their settings used to read this text, not all elements may display as intended.
Page I-7, Monster Magic Square: row 2 column 2 should be 48, not 41; row 3 column 9 should be 92, not 72.
Page I-30, magic triangle, bottom row 0 should be 8 (as in the solution on page I-150).
Page I-89, "on opposite sides of the central line": this should be read "on opposite sides of the central lines" (both horizontal and vertical).
Page I-130, mens’ tears: as printed in the source document.
Page I-131, An Illusion of Type: the phenomenon described may not work with every font. Therefore the right-side-up and upside-down text lines have been inserted as an additional illustration.
Page I-136, For the Children, last sentence: the opposite is true: If this is an even quantity the coins or sweets in the right hand are odd, and in the left even; if it is odd the contrary is the case.
Page II-130, number 81: some words were misprinted or missing altogether; these have been added based on the context: ... the man [fe]ll sick ...; [Ho]w ought his estate ...; and ... to [the] widow, son and daughter.
Page II-148, Notable Chronogram: IAVDES should have read LAVDES, which would result in the year 1894 (when the organ was blessed).
Page II-176, Solution LXXX: The positions of the dots are indicated in the text only, not in the diagram.
Page II-204, Solution 65, 12 + 1⁄2 = 13⁄2: the calculation only works if the 12 were replaced with 12⁄2 (or 6), which would be in accordance with the description.
Page II-206, Solution 77: two and twenty pence should probably read two and twenty pence.
Page III-3 and III-111, No. III: The illustration in the question is not the same as the one in the answer.
Page III-25, Begins 2 U U U up: possibly an error for Begins 2 UU U up (cf. other repeated letters).
Page III-35, No. XXXV, five words: there are six words in the puzzle (and in the solution).
Page III-77, inspiréd strain: as printed in the source document.
Changes made
Some obvious minor typographical and punctuation errors and misprints have been corrected silently.
Some minor lay-out inconsistencies have been standardised without further remarks; where necessary, table and text-elements have been re-arranged and aligned in accordance with the description given.
The part numbers have been inserted on the blank pages preceding each part.
Throughout the book, items from one category (preceded by an Arabic number) are occasionally printed split over two pages, with one or more items from other categories (often preceded by a Roman numeral) between the several parts. For this text, these split items have been recombined on the page where they originally started, and references to their respective parts have been deleted.
The part numbers (I, II and III) have been added to the page numbers for easier reference.
Items in dotted boxes do not occur as such in the original book but have been transcribed schematically from the illustration.
The illustrations on Page II-63 (No. LXIII) and II-65 (No. LXV) have been flipped horizontally, the illustrations on page II-68 (No. LXVIII) and II-78 (No. LXXVIII) have been rotated, all in order to correctly display the letters and numbers.
Page I-141: "cigars" changed to "cigares" (French, 2x).
Page II-99, 61 changed to 61⁄2.
Pages II-113 and II-185, illustration: reference letter "F" added.
Page II-199: "there they sold" changed to "these they sold".
Page II-225, Solution 6: "f on d l over" changed to "a f on d l over".
Page III-7, No. VII: "BVT In trVth" changed to "bVt In trVth".
Page III-41, No. 67: "And if — —— is ’vert" changed to "And if an —— — ’vert".
Page III-46: "chêrit" changed to "chérit".
Page III-54, No. LIV: in the printed document, the doors are marked (left to right) B - A - C, and the gates B - A - C as well. The gates’ marks have been changed to C - A - B in order to agree with the solution provided on page III-127.
Page III-67, illustration: unprinted asterisk added to the right-hand arm of the cross.
Page III-78: "a jamais" replaced with "à jamais".
Page III-108: "stats" replaced with "stets".
Page III-123, Solution XLIII: V inserted in bottom line cf. puzzle.
Page III-124: "stripes" changed to "strips" cf. puzzle.
Page III-128: "86 diamonds and 6 children" changed to "36 diamonds and 6 children".
Page III-132: Solutions LXVIII and LXXIV have been added to show the upside-down illustrations. Solution LXXVIII has been added to show the reversed illustration.