Answer:
A precious stone, as clear as diamond. Seek it out whilst the sun's near the horizon. Though you can walk on water with its power, Try to keep it, and it'll vanish within an hour.
I look at you, you look at me, I raise my right, you raise your left.
Who has married many women but never has been married who is he
What stays the same size no matter how much they weight?
Though blind as well, can lead the blind well.
As round as an apple. As deep as a cup. All the king's horses can't pull it up.