Givaway or contest with big prize ok let's get on with it

Riddles:

 1.Poor people have it. Rich people need it. If you eat it you die. What is it?

2.What goes up and never goes down?

3.You heard me before,Yet you hear me again,Then I die,'Till you call me again.

4.I'm lighter than air but a million men can't lift me. What am I?

5.I hide but my head is outside. What am I?

6.Soft and fragile is my skin I get my growth in mud I'm dangerous as much as pretty For if not careful, I draw blood.

7.What gets wetter as it dries?

8.The more you have of it, the less you see. What is it?

9.I know a word of letters three. Add two, and fewer there will be

10.When set loose I fly away, Never so cursed As when I go astray.

11.What always works with something in its eye?

12.What comes once in a minute, twice in a moment but not once in a thousand years?

13.What has a head, one arm, one leg and a round bottom? 

+ YOU MAY NOT USE ANY BOOKS, WEBSITES, OR ETC.