Answer:
What is black when you buy it, red when you use it, and gray when you throw it away?
When you are inside me you will be encouraged to slam other cars.
I ask no questions but receive a lot of answers. What am I?
I have two eyes in the front and a lot of eyes on my tail
I hide in a dark tunnel awaiting my time. I can only be released by pulling back. Once released I may do unstoppable damage.
A doctor might remove one from the neck of a Dracula victim.