A Simple Toothpick Example,
Fig. 159. Let us see you take away five toothpicks and leave three perfect squares.
Fig. 159.—Toothpick Puzzle.
It is a simple problem, and one glance at Fig. 160 shows how it is done, but you must remember that the other fellows or girls to whom you put the question are not supposed to know the solution, and unless the puzzle-workers are very bright it will take some thinking to work out the problem—at least it will take enough thought to be a source of amusement to all concerned.
Fig. 160.—Solution.
When the toothpicks are removed and the problem solved, ask them to