43 × 47 = 2021.
No. LXXVII.—A JOINER’S PUZZLE
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.
A CALCULATION
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!
A PARADOX
It is possible, in a sense, by the following neat method, to take 45 from 45, and find that 45 remains:—