Carter P.J., Bremner J., Russell K.A. Mensa: The Ultimate Puzzle Challenge

Metro Books, 2009. — 308 p.A gigantic puzzle book of epic proportions from Mensa—can you handle The Ultimate Puzzle Challenge?
No matter how you look at it, The Ultimate Puzzle Challenge is big. In fact, it’s enormous. There are more than 500 puzzles inside its covers, from cunning numerical conundrums and testing word games, to logical teasers, enigmatic lateral thinking tests, and abstract visual problems. And because they don’t follow any special pattern, you’ll never know what fiendish challenge is lying in wait for you on the next page.