300+ Mathematical Pattern Puzzles: Number Pattern Recognition & Reasoning (Improve Your Math Fluency) Chris, McMullen
The Ultimate Logic Grid Puzzle Book for Adults: Puzzle Book for Adults, Seniors and Teens. 180 pages . 6 x 9 inches brilla, mohamed
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
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