Key Features Pocket-sized puzzle book 84 one-minute lateral-thinking puzzles Difficulty ranges from simple to complex Perfect travel companion  All solutions are included Engage your brain against the clock with this stunning collection of time-critical puzzles. Solving each puzzle is a challenge in itself but for the true puzzle-fiends the ultimate test will be the battle against the clock. Keep a watch close to hand and see if you can crack these lateral thinking puzzles within a minute!