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Lösen Sie viele ausgefeilte Rätsel, um zu entdecken, wie der menschliche Körper funktioniert

Entdecken und kombinieren | Das Wissensbuch mit 20 Rätseln und kuriosen Fakten: Zu Musik, Sport, Hunderassen, Dinosauriern, Ländern, Berufen und Co.

More than 200 of the most difficult number puzzles

Test your word power with more than 100 puzzles

Put your logical reasoning to the test with more than 200 tricky puzzles to solve

More than 150 brainteasers to test your powers of deduction

Test your powers of reasoning with exacting enigmas

Puzzles inspired by the lighter side of science

A Year of Games to Sharpen Your Mental Fitness

Prove your logical and numerical abilities against 200 fiendish problems

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200 puzzles to unlock your mental potential

200 puzzles to unlock your mental potential

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A Year of Games to Sharpen Your Mental Fitness