1.The road is dark,but a driver does not use a car light when he is driving.Can you tell me why?
2.What animal is the largest in the sea?
3.What falls on the water and never gets wet?
4.What has a mouth but never eats anything?
5.What table has no legs?
6.Which travels faster,"heat"or"cold"?
7.What is the smallest bridge in the world?