Answer:
Long and think, red within, with a nail at the end.
You saw me where I never was and where I could not be. And yet within that very place, my face you often see.
He has married many women but has never married.
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
Who is he that runs without a leg. And his house on his back?
I am free the first time and second time but the third time is going to cost you money.