Answer:
Brown I am and much admired. Many horses have I tried. Tire a horse and worry a man, tell me this riddle if you can. What am I?
Weight in my belly, trees on my back, nails in my ribs, feet I do lack. What am I?
Squeeze me and I cry tears as red as my flesh but my heart is made of stone.
I am used to bat with, yet I never get a hit. I am near a ball, yet never thrown. What am I?
My teeth are sharp my back is straight to cut things up it is my fate.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.