Never met a puzzle you couldn't solve? With this comprehensive compendium of mind-boggling brain busters, you may have finally met your match. Choose from among hundreds of crosswords, math and logic problems, and IQ exams to test your mental mettle. Diverse and demanding, the puzzles in this collection will challenge you to observe, predict, generalize, reason, assume, compare, and recall. Sharpen your wits on old favorites that have baffled enthusiasts...