Answer:
I am what one cannot keep, two cannot hold, and three cannot destroy. What am I?
I am an odd number that become even when beheaded.
A necessity to some, a treasure to many, I'm best enjoyed among pleasant company. Some like me hot, some like me cold. Some prefer mild, some like me bold. What am I?
I am heavy forward, but backward I'm not. What am I?
When I live I cry if you don't kill me I'll die.
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.