All-Star Mathlete Puzzles (Mensa Series)

Puzzle collections are ubiquitous. But a collection like this one, with so many unusual and original entries, is rare indeed. Dick Hess’s gathering of his all-time favorites includes number puzzles, geometric puzzles, logic puzzles, analytical puzzles, story puzzles—and every one a gem. They vary in difficulty, but every one is challenging. In fact, two of them are mathematical problems still awaiting definitive solutions! Here’s an example of one of the easier ones: Which is the longest month in London? (Answer: October, when clocks are set back one hour.) True connoisseurs will treasure this intriguing volume, and everyone who loves a good puzzle will find something entertaining and worthwhile here.