A collection of riddles, lateral thinking problems, conundrums, mind mazes, posers and baffling brain twisters, to strengthen your brain power.

What better way to sharpen your wits and your puzzle skills than with Mensa's book of Riddles & Conundrums?

Take the Mensa challenge! These extraordinarily entertaining puzzles can confound even those with high IQs-and that's what makes them such delightfully tricky f