250 2-Minute Fun Brain Teasers, Logic Puzzles, Riddles & Trivia Games: Activity Book for Adults, Kids & Teens with Math Riddles, Logical Puzzles, Ques Paperback $9.99
295 Fun Brain Teasers, Logic/Visual Puzzles, Trivia Questions, Quiz Games and Riddles: MindMelds Volume 1, World Edition - Fun Diversions for Your Men Paperback $7.95