Answer:
My rings are not worth much, but they do tell my age. What am I?
I shift around though always slowly. I never move more than a few inches at a time. A large movement by me can kill many people. I am huge yet unseen by humans.
I may only be given but never bought. Sinners seek me but saints do not. (one word).
Lovely and round I shine with pale light grown in the darkness a lady's delight.
I am a key that is playful. What am I?
What made Cyclops quit teaching?