Written by Official American Mensa Puzzle author; Tim Sole; this captivating collection of over 150 mind-bending conundrums is perfect for anyone seeking a challenge. Can you solve the almost impossible? Whether you're a seasoned puzzle solver or a newcomer; this collection promises a fun mental workout with a huge variety of fiendish puzzles. Inside you will find cryptic riddles; numerical conundrums; satisfying codebreakers and much more. So dive in and decode the baffling ..