Answer:
When a doctor hits you with a hammer he is testing this
What has a hundred limbs, sometimes leaves, but cannot walk?
It's been around for millions of years, but it's no more than a month old. What is it?
What has a head and a tail but no body?
The lunch destination of choice for teenagers and hospital employees.
I am a room that has a roof but no walls. What am I?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?