Answer:
In the evening I'm long, in the morning I'm smallΝΎ When seen in a ballroom, I'm nothing at all.
I do not breathe, but I run and jump. I do not eat, but I swim and stretch. I do not drink, but I sleep and stand. I do not think, but I grow and play. I do not see, but you see me everyday.
A harvest sown and reaped on the same day in an unplowed field. Which increases without growing, remains whole though it is eaten within and without. Is useless and yet the staple of nations.
What kinds of men are always above board?
What can be swallowed, But can also swallow you?
I have two bodies joined together as one. When standing still I run and run.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?