Answer:
I am a place where time is told. I am not bought and I am not sold. What am I?
I am the minerals vital for your good health.
I am in truth a yellow fork from tables in the sky by inadvertent fingers dropped the awful cutlery. Of mansions never quite disclosed and never quite concealed the apparatus of the dark to ignorance revealed.
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
What three letters change a boy into a man?
Why is the letter B always cool?