2-Minute Fun: 250 2-Minute Fun Brain Teasers, Logic Puzzles, Riddles & Trivia Games : Activity Book for Adults, Kids & Teens with Math Riddles, Logical Puzzles, Questions and Answers (Series #1) (Paperback) - Walmart.com
Math Riddles with Answers for High School | Maths puzzles, Math riddles, Math logic puzzles