Answer:
I tremble at each breath of air, and yet can heaviest burdens bear. What am I?
I run around the city but I never move.
I am just two and two. I am hot. I am cold. I am the parent of numbers that cannot be told. I am a gift beyond measure, a matter of course. What am I?
You can see me in water, but I never get wet. What am I?
Face with a tree skin like the sea. A great beast I am. Yet vermin frightens me.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.