Answer:
Weight in my belly, trees on my back, nails in my ribs, feet I do lack. What am I?
I run around the city but I never move.
I cannot be burned in fire or drowned in water
I have branches but no fruit trunk or leaves. What am I?
Whoever makes it tells it not. Whoever takes it knows it not. Whoever knows it wants it not
What an fill a room but takes up no space?