Answer:
What did Physics say to History when they are arguing?
Which letter of the alphabet has the most water?
Which tree is the most difficult to get along with?
What's get sharp the more you use it
I run over fields and woods all day. Under the bed at night I sit not alone. My tongue hangs out, up and to the rear, awaiting to be filled in the morning
You throw me out when you use me and take me in when you are done.
Funny
Animal
Difficult
Easy
Food
Kids
Logic
What am I?