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 for years or venture into unchartered territory with new puzzles poised to join the classics. Helpful illustrations, a straightforward answer key and convenient spiral binding combine to ensure a pleasant puzzle solving session. Most entries can be solved with a pen and pencil or handy items like scissors, toothpicks, and coins. Whether a springboard for party fun or a source of private pondering, this collection provides hours of entertainment for all who dare to put their brain power to the test.