Answer:
In a tunnel of darkness lies a beast or iron. It can only attack when pulled back. What is it?
Sometimes I fly as fast as the speed of light. Sometime I crawl as slow as a snail. Unknown until I am measured but you will certainly miss me when I’m gone.
You shoot me but I don't die. You hang me but I don't die. What am I?
I have a name that's not mine and no one cares about me in their prime. People cry at my sight and lie by me all day and night.
I have no voice but I can teach you all there is to know. I have spines and hinges but I am not a door. Once I’ve told you all I cannot tell you more.
What never gets any wetter no matter how hard it rains?