There are different kind of questions. Some of them need to use an auxiliary verb others don't. Some of them will be answered with a 'Yes' or a 'No' and some of them will give more infomation.
I think it's time we revised all this grammar before moving into another thing.
Click on the following link and read about it.
Quesion order
And now do the following exercises.
Exercise 1
Exercise 2
Exercise 3
Exercise 4
Exercise 5