Find a mistake that needs correction in each of the following questions

Exercise 2 . Find a mistake that needs correection in each of the following questions 
5.Where  is Lan's favorite subject ?
6.Mike doesn't goes the cinema with us on Saturday.
7.My brother have a new compass
8.We usually goes to the same school 
9.Does your mother and Mrs.Anne  work here ?- Yes, they do
10.Mr. Hung sometimes teach physics at my school