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.
When you need me, you must find me. When you find me, you no longer need me. What am I?
I go up and never come down no matter how hard you wish. As I get higher more wrinkles crawl onto your face.
Born in the ocean and white as snow. When I fall back to water, I disappear without a trace. What am I?
I am drawn by everyone without pen or pencil. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.