Answer:
You use a knife to slice my head but you weep beside me when I am dead
kings and queens may cling to power and the jesters may have their call. I am the most common but I can rule them all.
I have a head and a tail but my eyes can never see my tail.
Travel a mile and I will change, travel a million and I will end as I started. What am I?
Alone I am 24th with a friend I am 20. Another friend and I am unclean.
For our ambrosia we were blessed, By Jupiter, with a sting of death. Though our might, to some is jest, We have quelled the dragon's breath. Who are we?