Answer:
I produce wool and spit a lot
Weight in my belly, trees on my back, nails in my ribs, feet I do lack. What am I?
I am a cave full of bones and the house of a worm.
Everyone asks for me but yet everyone hates to face me. For someone I am agony, for others I am relief! What am I?
I work when I play and play when I work
A little house full of meat, no door to go in and eat.