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. What am I?
It rows quickly with four oars but never comes out from under its own roof. What is it?
The 8 of us go forth and not back to protect our king from a foe's attack. What am I?
I am the only thing that always tells the truth. I show off everything that I see. I come in all shapes and sizes. What am I?
As a state in the USA, I am round on both sides and high in the middle. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?