Answer:
I have three eyes and only one leg. Obey me or you will be sorry.
I mean goodbye for South Americans.
You do not want me when you don’t have me but when you have me you don't want to lose me.
I begin and have no end. Eventually, I will be the ending of all that has begun. What am I?
I am perfect with a head perfect without a head; Perfect with a tail perfect without a tail; Perfect with either neither or both.
It's what light turns into in the night