Mensa: logic challenges

A series of logic puzzles designed by some of Mensa's leading puzzle-setters which will help boost brain activity and improve concentration and memory - while providing hours of puzzling entertainment. With over 200 logical challenges to test your aptitude for deduction and to get your brain in gear [...]
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A series of logic puzzles designed by some of Mensa's leading puzzle-setters which will help boost brain activity and improve concentration and memory - while providing hours of puzzling entertainment. With over 200 logical challenges to test your aptitude for deduction and to get your brain in gear.