Answer:
Weight in my belly trees on my back nails in my ribs feet I do lack.
The more it dries the wetter it gets. What is it?
A dagger thrust at my own heart dictates the way I'm swayed. Left I stand and right I yield to the twisting of the blade. What am I?
I am a band that does not perform sing or act.
What is full of holes but still holds water?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.