241 Real-World Brain Teasers.: Guided problem-solving in Inventions, Nature,...

The Teenager's Guide to the Real World - Paperback By Marshall Brain - VERY GOOD

The Awesome Book of One-Minute Mysteries and Brain Teasers - Paperback - GOOD

The Teenager's Guide to the Real World - Paperback By Marshall Brain - GOOD

241 Real World Brain Teasers: Guided Problem Solving In Inventions, Nature

Brain Games - Poe Puzzles: More Than 100 Brain Teasers Inspired by E - VERY GOOD

Perfectly Logical!: Challenging Fun Brain Teasers and Logic Puzzles - VERY GOOD

241 Real-World Brain Teasers.: Guided problem-solving ... by Invent and Discover