How to Solve a Rubik's Cube: The Easy Solution to The Rubik's Cube, A Beginner's Guide to Solving This Puzzle, Quick and Easily! (3x3 Cube) (Rubix) (2nd Edition)

Brain Training And Brain Games for Memory Improvement: Concentration and Memory Improvement Strategies with Mind Mapping: Concentration and Memory Improvement Strategies with Mind Mapping

My Best Mathematical and Logic Puzzles

Cracking Codes and Cryptograms For Dummies

IQ and Aptitude Tests: Assess Your Verbal Numerical and Spatial Reasoning Skills

The Secret

The World Cup Of Everything: Bringing the fun home

Spy School: Are You Sharp Enough to be a KGB Agent?

The Stanford Mathematics Problem Book: With Hints and Solutions

Codes and Ciphers - A History of Cryptography

Assassin's Creed - Escape Room Puzzle Book: Explore Assassin's Creed in an escape-room adventure

IQ and Psychometric Test Workbook: Essential Preparation for Verbal Numerical and Spatial Aptitude Tests and Personality Tests

The Business Standard Quiz Book

The Moscow Puzzles: 359 Mathematical Recreations

The Book of Riddles: A Mysterious Collection of Brain-Teasing Riddles

Train the Brain: Use It or Lose It

Forever Undecided

Whodunit Mysteries: Pit your wits against our team of sleuths to solve the cases

Why You Lose at Bridge

To Mock a Mocking Bird