When a daredevil rides a bike or a skateboard off a big ramp high into the air, that’s already crazy. So imagine doing a jump like that in a huge truck! Driver Gregg Godfrey holds the world record for the longest jump by a truck, 166 feet. He shot off the ramp at 70 miles an hour, and beat an earlier record of 62 feet, which means he’s not the only person crazy enough to try this

*Wee ones:* What shape is a truck tire?

*Little kids:* Which has more wheels, this 10-wheel truck or an 18-wheeler? *Bonus:* How many more wheels does the 18-wheeler have?

*Big kids:* If you have some mix of 10-wheelers and 18-wheelers with 48 wheels in total, how many of each size truck must you have? *Bonus:* A truck cab like that weighs about 20,000 pounds. How many 4,000-lb cars would have to stack up to match that?

Answers:

*Wee ones:* A circle.

*Little kids:* An 18-wheeler. *Bonus:* 8 more wheels.

*Big kids:* 1 18-wheeler and 3 10-wheelers. *Bonus:* 5 cars.