Answer:
What has one eye but cannot see?
A precious stone, as clear as diamond. Seek it out while the sun's near the horizon. Though you can walk on water with its power, try to keep it, and it'll vanish in an hour.
What is given but kept by the giver?
What turns from red to black as soon as it touches water?
What can burn the eyes, sting the mouth, yet be consumed?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?