Give me food, and I will live; give me water, and I will die. What am I?

(a)  

The more you take the more you leave behind. What am I?

(a)  

What has a head, a tail, is brown, and has no legs?

(a)  

How many 9's are there between 1 and 100?

(a)  

David's Father Has Three Sons: Snap, Crackle, and (a)  

What is the answer?

(a)  

What goes up but never comes down?

(a)  

What is heavier 100kg of gold or 100 kg of feathers?

(a)  

What is at the end of rainbow?

(a)