Number-Crunching Math Puzzles

Are you sharp enough to solve these devious mind-bogglers?

These diverting number, geometric, logic, analytical, and story problems--which vary in difficulty from pleasantly puzzling to chew-your-pencil challenging--will test your smarts. Math conundrum connoisseurs will treasure this collection, and everyone who loves a good puzzle will feel a sense of accomplishment by the end of the book.