A brain-teasing collection of mental workouts, each designed to be solved in 10 minutes. Puzzlers of all skill levels: challenge yourself with over 150 tests of logic and reasoning! This latest addition to the 10-Minute Brain Games series offers puzzlers brain teasing reasoning challenges--conundrums, cryptic codes, logic puzzles, riddles, and more. The perfect book for puzzlers who love to keep their brain in tip-top form. The brain teasers within will sharpen thinking for all skill levels, whether new to puzzling or just looking for a new challenge.