Answer:
What common verb becomes its own past tense by rearranging its letters?
Halo of water, tongue of wood. Skin of stone, long I've stood. My fingers short reach to the sky. Inside my heart men live and die.
Not born, but from a Mother's body drawn. I hang until half of me is gone. I sleep in a cave until I grow old. Then valued for my hardened gold.
Twigs and spheres and poles and plates. Join and bind to reason make.
It can cause deflation of tires when dropped from the rear of spy cars.
People take me on walks and I run and have fun. What am I?