It pretty simple,It works by having the OP post a question.The next person who replies answers the question, and then asks a question of their own. The next poster replies to that question, and then posts a question of their own. And so on.
preferably in this format
(Ex) Q:fgt#1 A:fgt2
since i am the first one ill just ask a question
Q:How much money would it take for you to kill a puppy with a sledge hammer?