Brain-Boosting Riddle Challenge! Slightly Tricky 644 Questions [Japanese]

By Japan Riddle Performance Test Association

A collection of 644 challenging riddles that stimulate the brain and improve readers' determination and mental flexibility. The riddles range from straightforward to tricky and cunning, providing a sense of excitement and anticipation. Readers are encouraged to find their favorite riddles and see if they can solve them.

• Format: Hardcover
• Language: Japanese
• ISBN: 4405073724
• ISBN13: 9784405073722
• Release Date: October 2023
• Publisher: Shinsei Shuppnsha