Two-Minute Mysteries Collection
This is a collection of three of Donald J. Sobol's books: Two-Minute Mysteries, More Two-Minute Mysteries, and Still More Two-Minute Mysteries.
Two-Minute Mysteries (Apple Paperbacks)
Still More Two-Minute Mysteries
Stories to Solve
Five-Minute Mini-Mysteries
One Minute Mysteries: 65 Short Mysteries You Solve with Math!
Mind-Boggling One-Minute Mysteries and Brain Teasers
One Minute Mysteries: 65 Short Mysteries You Solve With Science!
Of Course!: The Greatest Collection of Riddles & Brain Teasers For Expanding Your Mind