Answer:
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.
I am not alive but I can die. What am I?
What goes through a door but never goes in and never comes out?
I am what brings things together. Without me everything you see would be a total mass or debris everywhere. What am I?
Find me on body builders or in the drink aisle. What am I?
What made Cyclops quit teaching?