Math & Logic Problems for Beginners & Seasoned Puzzle Solvers – 8 Pack [Paperback] Penny Press/Dell Magazines Dell Puzzle Books
Logic Problems Spectacular Puzzles for All Ages – 2 Pack [Paperback] Penny Press/Dell Magazines Dell Puzzle Books
The Ultimate Brain Games And Puzzles Book For Teens: Tricky But Fun Brain Teasers, Trivia Challenges, Crosswords, Word Searches, Cryptograms And Much More To Keep Your Mind Sharp And Engaged Donovan, Ellis
Sudoku Puzzles for Adults: Big Print, Two Puzzles per Page, Easy to Very Hard Levels for Seniors and Teens with Full Solutions Hoppe, Lucile