Educational materials to develop thinking skills with a riddle collection. - Title: Get Smarter! Riddles for 1st and 2nd Graders - Content: Riddle Collection - Title: I Love Riddles! 2nd Graders - Content: Riddle Collection - Title: Get Smarter! Riddles for 1st and 2nd Graders - Content: Riddle Collection Thank you for viewing. This is a set of two children's books of riddles for elementary school students. Both items are used, and there are no noticeable scratches or stains, but the cover of "Get Smarter! Riddles for 1st and 2nd Graders" has a slight crease. We also offer individual sales, so please comment if you wish to purchase them separately.