WHY IS IT?

Take a long narrow strip of paper, and draw a line with pen or pencil

along the whole length of its centre. Turn one of the ends round so

as to give it a twist, and then gum the ends together. Now take a

pair of scissors and cut the circle of paper round along the line,

and you will have two circles. This is a puzzle within a puzzle,

and has never been satisfactorily explained either by scientist or

mathematician.

How to Read a Person’s Character.

Tell a friend to put down in figures the year in which he was born;

to this add 4, then his age at last birthday provided it has not come

in the present year (if it has, then his age last year); multiply

this sum by 1000, and subtract 687,423. (This number is for 1899;

it increases 1000 for each succeeding year.) To the remainder place

corresponding letters of the alphabet. The result will be the popular

name by which your friend is known.

Example: A person was born in 1860, and is now 38 years of age.

1860

4

----

1864

38 Age

----

1902

1000

--------

1902000

687423

--------------

1,2,1,4,5,7,7

a,b,a,d,e,g,g (“A bad egg.”)

122. There are 3 numbers in continued proportion--the middle number

is 60, and the sum of the others is 125. Find the numbers.

123. A lends B a certain sum at the same time he insures B’s life for

£737 12s. 6d., paying annual premiums of £20; at the end of three

years and just before the fourth premium is to be paid, B dies,

having never repaid anything. What sum must A have lent B in order

that he may have just enough to recoup himself, together with 5 per

cent. compound interest on the sum lent and on the premiums?

124. I met three Dutchmen--Hendrick, Claas, and Cornelius--with their

wives--Gertruig, Catrün, and Anna; in answer to a question they told

me they had been to market to buy pigs, and had spent between them

£224 11s; Hendrick bought 23 pigs more than Catrün, and Class bought

11 more than Gertruig, each man laid out 3 guineas more than his

wife. Now find out each couple--man and wife.

The puzzle king · 第 116 / 216 题