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 store fire-breathing animals.
I am always coming but I never arrive. What am I?
You hear me speak, for I have a hard tongue. But I cannot breathe, for I have not a lung. What am I?
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 everyday
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.