Answer:
I fill a room but take no space. What am I?
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 regularly change shape yet remain a sphere. I am always there but not often seen. What am I?
I can be winding and I can be straight. I can be smooth and I can be rough. Sometimes both. I start out black but fade to brown. My favorite colors are yellow and white and I love stripes and dashed lines.
I have memories but none of my own whatever's on my inside is what is shown. If I'm ever different it's because you changed me I feel like a decoration here for you to arrange me.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.