Another puzzle.

What is black when you buy it, red when you use it, and gray when you throw it away?

 

Maybe not the "right" answer -- but charcoal would sure fit the bill.

 

Good guess, you got it! Charcoal is correct. I gonna have to get more tricky, these are too easy.

 

ok here is mine-->

 

I have the answer but I cheated to get it

So I won't say anything.

 

Sound like my last girlfriend.

 

Ouch!!

 

yea really...ouch

 

Growing older?

 

~can't resist~

air?

 

since so many have wondered{hint/hint}here is the answer--->

 

yeah, that was my next guess(not!). It would have been ok to wait alittle longer before giving the answer- but that's up to you.