Test yourself against a fiendishly tricky series of IQ test-style puzzles, the perfect training for those who want to prepare for a Mensa IQ test. This full-colour puzzle book features a wide variety of questions to test every aspect of your brain''s workings, from visual and spatial challenges to pattern-based or logical problems. Compiled by Dr Gareth Moore, Mensa''s Most Difficult IQ Puzzles will force you to think in new ways and spot patterns you have never seen before in order to solve these demanding conundrums.