Finally, a puzzle book as “bright” as its readers. Not only will puzzle-doers find wickedly tricky brainbusters on every page, but all the accompanying illustrations are in brilliant color too. And that makes unraveling these challenging conundrums even more fun. It will take some real smarts to figure this out:

Diamonds are for never: Robbers knew that a woman had some very valuable diamonds. They waited until she was away on holiday and then burgled her house. They searched high and low but they could not find the diamonds. What had she done?

The answer may seem hard at find at first, but solvers who can think unconventionally, and look past the obvious, will figure it out—and every other puzzle too.

Answer: She froze each diamond in a separate section of a tray of ice cubes, where they were very hard to see.