If you want to make a how well do you know each other quiz, make some personal questions. Focus on things that are important rather than obscure. Ask questions like what town you grew up in.
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Taking a quiz or playing a game is a great way to get to know someone. A 'How Well Do You Know Each Other' quiz consists of multiple choice questions that help to determine how well you know each others interests and personality. You can find more information here: http://www.gottman.com/marriage/relationship_quiz/quiz1/