To keep your brain active and healthy , you need to exercise it. This book of fun and challenging puzzles provides a great source of mental exercise . You'll find a variety of puzzles to keep you engaged: Word games that boost your vocabulary and challenge your creative problem-solving skills . Number puzzles that exercise logic and reasoning. Puzzles that require reasoning and multi-step planning . There are over 180 puzzles to challenge and strengthen your brain! Answers can be found in the back of the book.