Answer:
I hide but my head is outside.
A serpent swam in a silver urn, A golden bird did in its mouth abide, The serpent drank the water, this in turn, Killed the serpent. Then the gold bird died.
I am cracked by Indiana Jones. What am I?
who do you think you know but sometimes you don't
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
I have two eyes in the front and a lot of eyes on my tail