Answer:
Longer than a decade and shorter than a milennium
A tangly game and a destructive weather phenomenon.
Mouth up it gets filled, mouth down it gets empty.
A squiggly line tells you when you've done it wrong
Old people and owls are said to be this.
I am your mother's brother's only brother in law. Who am I?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?