Answer:
The more you take away from me, the bigger I shall get. What am I?
A trail, a union, together tied. Come across me and you will find you cannot change the course I'm on. Without me you cannot travel on. What am I?
What has a head but never weeps a bed but never sleeps can run but never walks and banks but no money?
I store fire-breathing animals.
I am the home for feathery animals.
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.