Answer:
A hole in a pole, though I fill a hole in white. I'm used more by the day, and less by the night.
The man who invented it doesn't want it. The man who bought it doesn't need it. The man who needs it doesn't know it. What is it?
Take off my skin, I won't cry, but you will.
Iron roof, glass walls, burns and burns and never falls.
A great mysterious place that the bold have been known to journey into.
What is always coming but never arrives?