Mensa Riddles Conundrums Author:Robert Allen Can you think of a better way to sharpen your wits and hone your puzzle skills than with a handy volume of challenging puzzles? Of course you can't! "Riddles and Conundrums" is a fiendish, unstructured collection of riddles, lateral thinking problems, conundrums, mind mazes, posers and baffling brain twisters. Dip in anytime and solve a puzzle o... more »r two, or work your way through the whole thing, page by page.« less