Do you like to use your spare moments indulging in number puzzles? If so, Variety Puzzle Book 1 will be your perfect take-anywhere companion. With over 20 puzzles guaranteed to sharpen your mind and keep you thoroughly entertained, this collection is a real treat for anyone who loves number puzzles, and . Are you ready to rise to the ultimate brain-training challenge? The unique thing about this puzzle book is that the puzzles all fit within a theme - they are all related to Numbers. Working the puzzles in this book can provide a vigorous mental workout for virtually everyone from teenagers to senior citizens, all while fitting within the theme of Numbers.