You've certainly seen the program. In the US its called Family Feud, in the UK its Family Fortunes, but the format is the same. Two families play against each other. The questions are not necessarily difficult but can be tricky.
Have a fun ward activity or youth night by playing the Mormon Family Feud. Here are the answers to the Mormon Family Feud Questionnaire so you can put together your own game for a spirited and fun Mormon activity night.