Difficult Riddles For Smart Kids: 300 Difficult Riddles And Brain Teasers Families Will Love (Books for Smart Kids)

source https://www.amazon.com/Difficult-Riddles-Smart-Kids-Families/dp/1546595902/ref=zg_bs_books_29/131-5152091-9562346?_encoding=UTF8&psc=1&refRID=E92YW5A1BHX1V11J8CTD