Answer:
Once you know it exists, it no longer exists. What is it?
How many people are dead in a standard grave yard?
The profession of Jimi Hendrix and Eric Clapton
What time of day, when written in a capital letters, is the same forwards, backwards and upside down?
What gets broken without being hold?
I have feet on my head
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?