Answer:
I stand in one place yet fill the whole room. I can be filled with molten rock and come in every hue. What am I?
I start with āeā end with āeā. I have whole countries inside me. What am I?
I can run but not walk. Wherever I go thought follows close behind.
I walk on 4 legs in the morning, 2 legs at noon, and 3 legs at night. What am I?
I go up and down at the same time. Up towards to sky and down towards the ground
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.