Answer:
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
In a tunnel of darkness lies a beast of iron. I can only attack when pulled back. What am I?
You can see it everyday, but cannot touch it at will. What is it?
I have a mouth on my head and eat everything.
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.
Disgusting creatures that would survive a nuclear strike.