Answer:
What eight letter word has "kst" in middle, in the beginning and at the end?
If you agree give me one of these.
I occur twice in eternity. And I'm always within sight.
What body part is pronounced as one letter but written with three, only two different letters are used?
It is where kings, queens, knights and bishops go to war together.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.