Answer:
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?
I can't go left, I can't go right. I am forever stuck in a building over three stories high. What am I?
What has to be broken before you can use it?
I cannot be felt, seen or touched. Yet I can be found in everybody. My existence is always in debate, yet I have my own style of music. What am I?
I store fire-breathing animals.
What did the grape do when he got stepped on?