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Brain Power Riddles & Games

How to Understand, Enjoy, and Draw Optical Illusions Choose hardcover or eBook download. $14.95 (A140)	Can You Name Them All? A Quiz Deck on Everything from the Three Musketeers to the Seven Seas Knowledge Cards $9.95 (K244)	Mathematical Games Knowledge Cards $9.95 (K185)
Scientific American Mathematical Games, Volume 2 Knowledge Cards $9.95 (K259)	Scientific American Head Games: 48 Confounding Word & Math Puzzles Knowledge Cards $9.95 (K292)	What Did They Do? Big Accomplishments of Not-So-Well-Known People Knowledge Cards Price: $9.95 Sale: $4.98 (K267)
Riddles Knowledge Card Deck $9.95 (K321)