Answer:
There are four of these, but everyone's favorite seems to be spades.
What is it that you ought to keep after you have given it to someone else?
Big as a saucepan, deep as a cup, Even a river can't fill it up. What is it
In the sun it likes to play; In the rain it goes away; Walk or run it always follows; In the mud it always wallows.
Makes dough grow
Two little holes in the side of a hill. Just as you come to the cherry-red mill.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?