Ice breakers

I speak without a mouth and hear without ears. I have no body, but I come alive with the wind. What am I?

(a)  

What has keys but can't open locks?

(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)  

What has a neck but no head?

(a)  

What has cities, but no houses; forests, but no trees; and rivers, but no water?

(a)  

What has a heart that doesn't beat?

(a)  

What has one eye but can't see?

(a)  

I am taken from a mine, and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

(a)  

What has a thumb and four fingers but is not alive?

(a)