Being an integral part of his family’s business is priceless, says Marco Andretti, an IRL racer who finished second in the Indianapolis 500 when he was only 19 years old. Andretti said he can’t imagine being in the racing business without his legendary grandfather Mario Andretti, one of the most famous race car drivers of all time.

True or false? 1. All blind people wear sunglasses. 2. If you read Braille in the dark, you need a flashlight and your fingers get tired. 3. All blind people have Seeing Eye dogs.