AN UNSOLVED PROBLEM.

One of the commercial questions of the day which remains to this time

unsettled, is whether the fact of a gentleman having NO TIN may not

have something to do with the answer he invariably sends of NOT IN

when anyone calls on him with a bill.

78. Find nine numbers in arithmetical progression--common difference

3--whose sum is equal to 5670, and arrange in a square, each side

containing three different numbers, so that, when added vertically,

horizontally or diagonally, the sum of each three numbers will amount

to 1890.

79. I have a box. The pieces forming the sides are 5 ft long, and

those forming the ends are 4 ft. broad. The box, when measured

externally all round, measures 18 ft 4 in., and when measured all round

internally, measures 17 ft 8 in. How can this be?

[Illustration]

Teacher: “Who was it that supported the world on his shoulders?”

Bright Pupil: “It was Atlas, ma’am.” Teacher: “And who supported

Atlas?” Bright Pupil: “The book don’t say, but I s’pose it was his

wife.”

The puzzle king · 第 87 / 216 题