Author: Prefontaine, M. Difficult Riddles For Smart Kids: 300 Difficult Riddles And Brain Teasers Families Will Love (Books for Smart Kids). Sku: 1546595902-4-27908297. Condition: Used: Acceptable. Qty Available: 2.

Author: Prefontaine, M. Difficult Riddles For Smart Kids: 300 Difficult Riddles And Brain Teasers Families Will Love (Books for Smart Kids). Sku: 1546595902-3-27797486. Condition: Used: Good. Qty Available: 5.