Answer:
There are two bodies on the floor. They are surrounded by water and broken glass. How did they die?
I'm light as a feather, yet the strongest man can't hold me for more than 5 minutes.
My first is equality; my second is inferiority; my whole is superiority.
I am seen in the water. If seen in the sky, I am in the rainbow, a jay's feather, and lapis lazuli.
Lighter than what I am made of, More of me is hidden Than is seen.
It's what light turns into in the night