Answer:
I am a precious stone as clear as diamond. Seek me out while the sun's near the horizon. Though you can walk on water with my power try to keep me and I'll vanish in an hour.
I always go to bed with my shoes on.
I begin your sentences. What am I?
The more you have me, the less you see. Shine a light on me and I flee. What am I?
I can be entertaining until you realize some pieces have been lost.
What made Cyclops quit teaching?