Title: Ultimate Mind Games, Author: Parragon
Title: The Train Your Brain Workout: 156 Puzzle Challenges for a Stronger Mind, Author: Peter De Schepper
Title: IQ Puzzles, Author: Arcturus Publishing
Title: F*ck I'm Bored! Activity Book for Adults, Author: Tamara L. Adams
Title: Brain Training Puzzles, Author: Arcturus Publishing
Title: Mensa: Challenge Your Intelligence, Author: Kenneth A. Russell
Title: Of Course!: The Greatest Collection of Riddles & Brain Teasers For Expanding Your Mind, Author: Zack Guido
Title: Super IQ Tests, Author: Fraser Simpson
Title: Mensa Mighty Logic Puzzles, Author: Philip Carter
Title: Bletchley Park Codebreaking Puzzles, Author: Arcturus Publishing
Title: The Cleverest Brain Games on the Planet with Surprising Answers, Author: Pat Battaglia
Title: Brainteasing I Q Puzzles, Author: Chartwell Books
Title: So You Think You're Smart: 150 Fun and Challenging Brain Teasers, Author: Pat Battaglia