Mensa - Test Your Logic: Over 400 puzzles of deduction and logical thinking

A series of over 400 logic puzzles and problems of a variety of levels of difficulty designed by some of Mensa's leading puzzle-setters, with the aim of specifically improving various aspects of logical thought and lateral thinking through puzzle solving and problem confrontation. Tackling these challenges will help boost brain activity and improve concentration and memory – while providing hours of puzzling entertainment.