Pretty Self Explainatory... & a neat way to get to know a little about each other! :-6
Just answer the question posted above you with a YES or NO. (you may provide a short additional answer if you wish.. or simply state Yes or No)
Then you ask the next question.
Next person answers "yes" or "no"... then asks a new question...
And So on.... Easy enuff, right?

For Example:
Do you have a pet?
The next person will answer yes or no..
In my case I would answer:
YES ( 2 dogs and 1 cat)
Then I would post the next question...
Do you own a car?