There are different kinds 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 others will just give more infomation.
I think it's time we revise all this Grammar again before moving into another thing.
Click on the following link and read about it:
And now do the following exercises:
After that watch this funny video and copy twenty questions on your notebooks.
( Avoid the ones made by Manuel because they are not correct !! )