Is it small?
Yes, it is.
Is it purple?
No, it isn't.
Is it big?
Yes, it is.
Is it an umbrella?
Yes, it is.
Is it green?
No, it isn't.
Is it a rubber?
Yes, it is.
Is it new?
No, it isn't.
Is it a paintbrush?
No, it isn't.
Are you a good student??
Yes, I am/No, I'm not.
Are they old?
Yes, they are.