Answer:
I am the kind of nut that is empty at the center and has no shell.
I am a place where time is told. I am not bought and I am not sold. What am I?
I can be long or short. I can be grown or bought. I can be painted or left bare. My tip can be round or square. (one word)
I always follow you around, everywhere you go at night. I look very bright to people, but I can make the sun dark. What am I?
I am used for light yet I am solid. Without me you would feel enclosed. I hate being touched especially with a lot of force. I like to be in buildings.
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.