Answer:
What is all over a house?
A mechanism to discover who is following you.
Once you know it exists, it no longer exists. What is it?
Tomorrow's yesterday. Yesterday's tomorrow. What is it?
This is a dish containing beans, sometimes baked but, despite the name, usually stewed, in a sauce
Why is the letter B always cool?
Easy
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?