No. XII.—NUMBERS PATIENCE

Those who combine a fancy for “Patience” with some skill in numbers will find amusement in filling the empty cells of this diagram with appropriate numbers, each of which must consist of two figures:—

17 24
32 46
14
19 16
22 20

[Image]

It is required that each of the rows across from side to side shall add up, when all the cells are filled, to 143 exactly. No number must be used more than once.

[Solution]

No. XIII.—THE WINDMILL

Can you divide a square into 15 parts, which can be built up into this windmill?

[Solution]