Answer:
We are five little objects of an everyday sort. You will find us all in a tennis court.
What flies around all day but never goes anywhere?
My first is an insect; my second is a border; my whole puts the face in a tuneful disorder.
I'm white, I'm round, but not always around. Sometimes you see me, sometimes you don't.
There are 30 cows and 28 chickens. How many didn't?
What language does a billboard speak?