1 : Are there a living room and a bathroom in your house?

`=>` Is there a living room and a bathroom in your house?

2. How many knife are there in the kitchen?

`=>` How many knives are there in the kitchen?

3. My daughter has music in every Tuesday.

`=>` My daughter has music every Tuesday.

4. What does your mother going to do next weekend?

`=>` What is your mother going to do next weekend?

5. They didn't at the zoo yesterday

`=>` They weren't at the zoo yesterday.

1) Are there a living room and a bathroom in your house? 

Are -> Is

2) How many knife are there in the kitchen?

knife -> knives

3) My daughter has music in every Tuesday.

in -> on

4) What does your mother going to do next weekend?

does -> is

5) They didn't at the zoo yesterday.

didn't -> weren't