Find and correct the mistakes

Find and correct the mistakes.
1/ There isn't some water in the glass.

2/ There are a 3 children talking with the teacher.

3/ Are there some air conditioners in the attic ?

4/ Is there any windows in this classroom ?

5/ There aren't any pictures on the wall ?

6/ There is some people in the backyard.

7/ There aren't some pencils in the pencil case.

8/ Is there some boy in the living room ?

9/ There are any magazines on the table.

10/ There are a biscuit on the plate.