Collection of number puzzles. There are logic problems, mathematical puzzles, matrix problems, series puzzles, and many more besides.

"These visually unique braintwisters will put your puzzle-solving abilities to the ultimate test!"--Page 4 of cover.

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 fu

It’s puzzle nirvana for crossword lovers who have just a few minutes to spare, but still crave a challenge. Adapted from the popular Mensa 10-Minute Crossword

You don't need to be a genius or a professor of mathematics to have hours of fun with this book - just some logical thinking, a little common sense, a bit of ge