The Ultimate Activity Book for Smart Engineers: Over 100 Challenging Brain Teasers, Logic Puzzles, and Engineering Mind Games for Adults Solvemore, Studio
Murdle Jr.: Ready, Set, Solve!: Solve Your Way Through 40 Puzzle Mysteries! (Murdle Jr., 2) G. T., Karber
The Ultimate True Crime Puzzle Book: Over 100 Killer Activities for True Crime and Serial Killer Fanatics (Cryptograms, Crosswords, Brain Games, Word Searches, Trivia, Quizzes and Much More) Jack, Rosewood