Answer:
I am what brings things together. Without me everything you see would be a total mass or debris everywhere. What am I?
I am a room that has a roof but no walls. What am I?
In a tunnel of darkness lies a beast or iron. It can only attack when pulled back. What is it?
I am a word. I become longer when the third letter is removed. What am I?
Lighter than what I am made of, more of me is hidden than is seen. What am I?
Two little holes in the side of a hill. Just as you come to the cherry-red mill.