Conundrums, Riddles and Puzzles / Containing one thousand of the latest and best conundrums, gathered from every conceivable source, and comprising many that are entirely new and original

by Dean Rivers

Place three 2’s together so as to make 24.

Method.— 22 + 2 = 24.

Place three 3’s together so as to make 24.

Method.— 3³ - 3 = 24.

Take one from nine and make it ten.

Method.—Write nine thus, IX; take away the I we have X.

Add one to nine and make it twenty.

Method.—Nine is IX; cross the I we have XX.

Prove that one taken from nineteen leaves twenty.

Method.—Take the I from XIX, and we have XX.