61% knows the answer to this question: "..... has left the building "

And do you know the answer to this one? "What is molten rock beneath the surface of the earth called?"

60% knows the answer to this question: "Who sang the famous song "Sternschnuppe (live akustisch)" (2007)? "

And do you know the answer to this one? "Who sang the famous song "Ain't No Sunshine" (1973)? "

70% knows the answer to this question: "Who sang the famous song "So Young" (1997)? "

And do you know the answer to this one? "Who sang the famous song "Concrete Jungle" (1978)? "

61% knows the answer to this question: "What is the hierarchical system in domestic chickens called? "

And do you know the answer to this one? "Which of the following iconic writers was a native of Italy?"

90% knows the answer to this question: "Which of the following is not a major country in North America? "

And do you know the answer to this one? "The London Underground is better known as what to Londoners?"

36% knows the answer to this question: "Who sang the song, "You Don't Know My Name"? "

And do you know the answer to this one? "Who sang the famous song "It Ain't Over 'til It's Over" (1991)? "

91% knows the answer to this question: "This famous rock and roll legend married his cousin. "

And do you know the answer to this one? "Samuel Green, a free black man in Maryland, was arrested in 1857 and sentenced to ten years in jail for possessing what book "of an inflammatory character and calculated to create discontent amongst the colored population of this State"?"

60% knows the answer to this question: "From this selection, which is NOT a major US city? "

And do you know the answer to this one? "Hamburgers are the unfortunately named residents of what country's most important port city?"

89% knows the answer to this question: "According to Creedence Clearwater, "before you accuse me" what should you do? "

And do you know the answer to this one? "Made from pomegranates originally, what red syrup is used to make Shirley Temples and Tequila Sunrises?"

47% knows the answer to this question: "How old was Ronald Reagan when he died on June 5, 2004? "

And do you know the answer to this one? "2013 marked the 50th anniversary of what horrible event in the USA?"

94% knows the answer to this question: "Which of these is actually a famous battle in history? "

And do you know the answer to this one? "What was the only U.S. state that was formerly a kingdom with a ruling monarch?"

58% knows the answer to this question: "The 1960s female group, 'The Supremes', was signed to which record label? "

And do you know the answer to this one? "Which of these would you use to fasten the loops closed when making a paper chain?"