Challenge your mind with “A Number Puzzle a Day” by Michael Hill (ISBN: 9781805076568). This book offers a daily dose of number puzzles, perfect for sharpening logic and problem-solving skills. From Sudoku to KenKen, enjoy a variety of brain-teasers suitable for all skill levels. Boost your cognitive abilities and have fun with this engaging puzzle book. Ideal for puzzle enthusiasts, commuters, or anyone seeking a mental workout.