Answer:
What word has kst in the middle, in the beginning, and at the end?
I am there when you sit, but gone when you stand. What am I?
With three eyes and as black as night I frequently knock down ten men with a single strike!
What is so delicate that saying its name breaks it?
I am the key that is the hardest to turn
A doctor might remove one from the neck of a Dracula victim.