Answer:
When one does not know what it is, then it is somethingอพ but when one knows what it is, then it is nothing.
This is the most famous bank where children keep their assets
Do this to your gifts to make them festive
They're big and blue, and larger than seas
What has a spine, tail, and leash but isn't a dog?
This Chocolate baked good is a soft candy made from sugar, butter, and milk or cream.
Kids
Animal
Difficult
Easy
Food
Funny
Logic
What am I?