We use cookies to run the site and, with your permission, to measure how it is used. You can accept all of them or deny the ones that are not needed. Read the cookie policy.
⭐ Ratings & Reviews
No reviews yet — be the first!
No reviews yet.
📖 Description
Pit your wits against the number crunchers at Mensa Publications who have devised this demonic collection of over 200 mind-boggling number puzzles.
These are fun puzzles, but they are by no means easy. If you can solve them, you'll be a candidate for Mensa -- the internationally famous high-IQ society!