Answer:
You can always find me in the past. I am created in the present, but the future can not change me. What am I?
Used left or right I get to travel over cobblestone or gravel. Used up I vie for sweet success used down I cause men great duress.
I have green hair a round red head and a long thin white beard.
I am owned by Old McDonald.
It's been around for millions of years but is never more than a month old. What is it?
Give it food and it will live, give it water and it will die.