Mathematical Games - Knowledge Cards(c) (Games / Applications)

This quiz application from Scientific American magazine has fun and clever mathematical word games sure to challenge and increase your knowledge of math. There is order in the mathematical universe, but it can be hard to find. The orderly solutions to these abstruse, obscure, arcane, and delightful hairpullers run and hide in the bushes like rodents of the rainforest. Adapted from Martin Gardner's column in Scientific American.