Escape The Titanic: Use your wits and solve the puzzles to survive (The Escapist’s Library Series) JOEL JESSUP
Sudoku: Over 200 Puzzles & Solutions, Easy to Hard Puzzles for Adults, Spiral-Bound (Brain Busters) Parragon Books
Brilliant Brain Teaser Puzzles for Adults: 101 Games to Sharpen the Mind (Fox Chapel Publishing) Brain Games Book – Easy, Medium, and Hard Memory Activities, Word Puzzles, Logic Problems, and More Angels Navarro