Answer:
I have feet on my head
The more you take away from me, the bigger I shall get. What am I?
As a stone inside a tree, I’ll help your words outlive thee. But if you push me as I stand, the more I move the less I am.
I go up and never come down no matter how hard you wish. As I get higher more wrinkles crawl onto your face.
I hold two meanings. With one I may be broken with the other I hold on.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.