Answer:
Roast, boast, coast, post. What do you put in a toaster?
As a state in America I am round on both sides and high in the middle.
I am bought by the yard but worn by the foot
I am a rock group that has 4 members, all of whom are dead, one of which was assassinated. What am I?
I am always in front of you, but yet I am never here. What am I?
I always have to work with something in my eye. What am I?