Why Is eleven spelt starting with ' E ' ?

Why are there flotation devices under plane seats instead of parachutes?

If a cow laughed, would milk come out her nose?

If nothing ever sticks to TEFLON, how do they make TEFLON stick to the pan?

If you're in a vehicle going the speed of light, what happens when you turn on the headlights?

Why is it that when you transport something by car, it's called a shipment, but when you transport something by ship, it's called cargo?

You know that little indestructible black box that is used on planes, why can't they make the whole plane out of the same substance?

Why is it that when you're driving and looking for an address, you turn down the volume on the radio?