Are there stones that float in water? Can water striders fly? Does drinking vinegar soften the human body? Mr. Yasuo Matsumori answers simple yet scientifically difficult questions! A trivia Q&A collection of 492 questions made even easier to understand by Kontaro-sensei's illustrated manga! If you read this, you will be respected by the people around you, and you can brag about it with a triumphant look... maybe?