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 Iβve told you all I cannot tell you more.
I am the only thing that place today before yesterday. (one word)
A move made popular by the King of Pop.
You see a boat filled with people. It has not sunk but when you look again you don't see a single person on the boat. Why?
Find me on body builders or in the drink aisle.
A word of five letters, Upside down is the same, A shark does this, But itβs not to blame. What is the word?