1) Is there a carpet in the room?
Yes, there is.
2) Is there a window in the room?
Yes, there is.
3)Are there two tables in the room?
No, there aren't
4)Are there three armchairs in the room?
No, there aren't
5) Is there a sofa in the room?
Yes, there is.
6)Is there a lamp in the room?
Yes, there is.
7)Is there a bookcase in the room?
No, there isn't
8) Are there paintings in the room?
Yes, there are.