Math Riddles For Smart Kids: Math Riddles And Brain Teasers That Kids And Families Will love (Thinking Books for Kids)

Brainteasers and Riddles for Gritty Kids: 300 Difficult Mind-Bending Lateral Thinking, Logic, and Math Puzzles for Kids and Families

Really Fun Mazes For 5 Year Olds: Fun, brain tickling maze puzzles for 5 year old children (Really Fun Activity Books For Kids)

50 Fun Riddles and Coloring Book for Kids Book 2 – Animals, Food, Toys, Nature (50 Fun Riddles and Colouring Pages for Kids: Read,Learn & Colour)

The Ultimate Book Of Mathematical Brain Teasers: 400 Pattern & S