Answer:
What goes up the hill and down the hill, And spite of all, yet stand still?
10 fish are in a tank. 2 Drown, 4 Swim away, and 3 Die. How many are left?
If you count 20 houses on your right going to the store and 20 houses on your left coming home, how many houses did you count?
What is yours but only used by others?
What can I not be tomorrow?
Born in the ocean and white as snow. When I fall back to water I disappear without a trace.
Logic
Animal
Difficult
Easy
Food
Funny
Kids
What am I?