"A sparkling collection of puzzles and mathematical curiosities that will both beguile and instruct anyone who likes to stretch his or her mind. Highly recommended.
- Martin Gardner
Test your mental agility and sharpen your wits with this stimulating compendium of cerebral challenges. Based on the popular "Games" column in Omni magazine, but greatly amplified with a wealth of new and different material, the book is a veritable treasury of intellectual entertainment, filled with puzzles, quizzes, and games ranging from riddles, rebuses, and variations of tick-tac-toe to more sophisticated exercises in logic, mathematical analysis, physical science, geography, language, and general knowledge. And as a great finale, the complete Omni-Mensa IQ test is included to help you measure your brain power against the masters.
"Invigorating mental exercise that strengthens without exhausting, and that casts a glow of pleasure on everyone it touches." - Isaac Asimov