83% knows the answer to this question: "Bosnia and Serbia used to be part of which larger country? "

And do you know the answer to this one? "What ocean covers almost half of the Earth's water surface?"

46% knows the answer to this question: "Sabrina LeBeauf got the part, but Whitney Houston was one of the finalists to play Sondra, a late addition to what TV show's cast? "

And do you know the answer to this one? "Who was the first celebrity to sell the rights to her wedding to a magazine?"

93% knows the answer to this question: "Who had a UK No1 single hit in 1968 with I've Gotta Get A Message To You? "

And do you know the answer to this one? "Which Christina had a hit in 2011 with "Jar of Hearts"?"

68% knows the answer to this question: "Who was referred to as 'The Velvet Voice'? "

And do you know the answer to this one? "Finish the title of this 1983 Bonnie Tyler song: 'Total Eclipse of the?'"

93% knows the answer to this question: "What two people held two, week-long "Bed-Ins for Peace" in 1969? "

And do you know the answer to this one? "Dustin Hoffmans first major role was in what 1967 film?"

30% knows the answer to this question: "Which British city was once a Roman spa town? "

And do you know the answer to this one? "Hollywood and Napa Valley are in which state?"

86% knows the answer to this question: "King Juan Carlos I abdicated as King of which country in 2014? "

And do you know the answer to this one? "Plum pudding also goes by what name, for the time of year in which it is served?"

71% knows the answer to this question: "Co-written by Letterman sidekick Paul Schaffer, what gay anthem became a hit for the Weather Girls? "

And do you know the answer to this one? "Who was Eminem's alter ego?"

77% knows the answer to this question: "What is a public showing of artwork called? "

And do you know the answer to this one? "What do the penguins in "Happy Feet" love to do?"

37% knows the answer to this question: "The city of Memphis rises above which river? "

And do you know the answer to this one? "What is the deepest spot in the world?"

64% knows the answer to this question: "Who established the UNICEF program? "

And do you know the answer to this one? "Noel Gallagher and his younger brother Liam Gallagher became the duelling bad-boy mainstays of what Manchester rock band?"

83% knows the answer to this question: "What was the name of animatronic singing fish that was a hit in 2000-2001? "

And do you know the answer to this one? "The sugar bean, aka the butter bean, has what other name, which might remind you of a South American capital?"