Answer:
who do you think you know but sometimes you don't
What has one eye but cannot see?
What contains zero calories, but if you consume it, you will probably gain weight?
What liquid can contain the soul?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
When is it bad luck to see a black cat?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?