Simple rules, one person asks a question, the next person answers and asks another question.
eg.
Person 1 : What did you have for breakfast?
Person 2 : Egg + chips
Where are you going today...?
Questions can be anything
I am not in school any more - I prefered English to Math, but since English is not my native language then proper question would be Croatian or Math, and in that case I liked Math more.