300+ Mathematical Pattern Puzzles: Number Pattern Recognition & Reasoning (Improve Your Math Fluency) Chris, McMullen
99 6×9 Puzzles | Cryptogram Edition: Survival Skills: Adventure Theme Puzzle Book for Teens, Adults, and Seniors Books, Zoe & Sierra
Train Your Brain Logic Games and Puzzles Activity Book for Teens: 130+ brain teasers including sudoku, cryptograms, crosswords, wordsearch, riddles and more Publishing, Smiling Turtle
OMG I’m So Bored ! The Activity Book for Teens: 100 Games for 12-17 years old | Sudoku – Word Search – Mazes – Mandalas | Hours of Fun for Boys & Girls des Ados, La Bibli