Rewind·Posted on Aug 4, 2020This Is 100% The Hardest "Sister, Sister" Trivia Quiz You'll Ever Take, I PromiseYou're gonna need some sibling synchronicity to pass this test.by Spencer AlthouseBuzzFeed StaffLinkFacebookPinterestTwitterMailBuzzFeed Quiz Party! Take this quiz with friends in real time and compare resultsCheck it out! Below are 10 trivia questions about the iconic TV show Sister, Sister. As the quiz goes on, the questions will get more and more difficult. Good luck!