Answer:
People need me, yet they give me away every day. What am I?
I'm light as a feather yet the strongest person can't hold me for more than a few minutes. What am I?
I cannot be bought, cannot be sold, even if I'm sometimes made of gold. What am I?
I am rarely touched but often held and if you are smart you'll use me well.
What belongs to you but others use it more than you do?
Give it food and it will live, give it water and it will die.