Brain Stretching Math Riddles This book is the second in a series of riddles books. It is a collection of 150 brain teasing math riddles and puzzles. Their purp

Brain Teasers for Kids - Riddles for the Whole Family "The mind once stretched by a new idea, never returns to its original dimensions." Ralph Waldo Emerson Thi

Hard Riddles : Math Riddles, Detective Riddles, Riddles Brain Teasers For Kids, Who Am I? Train your brain with smart and hard riddles with answers. It gets the

Spark Curiosity and Challenge Young Minds with Difficult Math Riddles for Smart Kids! Is your child a math whiz who craves a challenge? Look no further than Dif

Spark Curiosity and Challenge Young Minds with Difficult Math Riddles for Smart Kids! Is your child a math whiz who craves a challenge? Look no further than Dif