Author(s): Robert Allen
Riddles and Conundrums is a fiendish, unstructured collection of riddles, lateral thinking problems, conundrums, mind mazes, posers and baffling brain twisters. Dip in anytime and solve a puzzle or two, or work your way through over 100 games and puzzles to strengthen your brain power.
Robert Allen was the Editorial Director of Mensa Publications. He was highly involved with Mensa for much of his life and wrote a huge amount of puzzle, game and self-help books.