Answer:
What time of day, when written in capital letters, is the same forwards, backwards, and upside down?
Casper was a friendly one and Demi Moore made a clay pot with one.
Once you know it exists, it no longer exists. What is it?
This is a dead giveaway
A big shiny black car nobody wants to be a passenger in.
Before I grow I'm small. When I'm old I grow tall. When I die I give a mighty fall.