300+ Mathematical Pattern Puzzles: Number Pattern Recognition & Reasoning (Improve Your Math Fluency) Chris, McMullen
Riddles for Smart Teens: 200 Puzzles, investigations and logic games to solve (+solutions) | For teenagers 12 years and older (Books for Smart Teens) des Ados, La Bibli
Logic Lover’s Math & Logic Problems for Teens, Adults & Seniors – 3 Pack [Paperback] Penny Press/Dell Magazines Dell Puzzle Books
The Ultimate Logic Grid Puzzle Book for Adults: Puzzle Book for Adults, Seniors and Teens. 180 pages . 6 x 9 inches brilla, mohamed