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64% knows the answer to this question: "What was the name of the controversial barrier that was constructed by East Germany in the 1960s? "

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43% knows the answer to this question: "Which South African leader died in 2013? "

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79% knows the answer to this question: "What is the name of the military academy which stands above the Hudson River in New York? "

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82% knows the answer to this question: "The Tea Party are named after an event which took place in which American city during the late eighteenth century? "

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83% knows the answer to this question: "The US literally engineered, not only this country's canal, but the country itself. What is it? "

And do you know the answer to this one? "Which artist is generally considered to be the father of contemporary country music?"

34% knows the answer to this question: "Who orchestrated the brutal murder of Sharon Tate? "

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39% knows the answer to this question: "Israel launched Operation Protective Edge in which area in 2014? "

And do you know the answer to this one? "Empress Gemmyo is a historical leader of which country?"

89% knows the answer to this question: "Who was Napoleon Bonaparte? "

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74% knows the answer to this question: "People of the Maasai tribe of Kenya traditionally make jewellery and pierce what body parts? "

And do you know the answer to this one? "Born in what is now in West Virginia, what nickname did Thomas Jonathan Jackson acquire at Bull Run?"

95% knows the answer to this question: "In 2014, scientists first converted normal cells into what kind of cells? "

And do you know the answer to this one? "The U.S. invaded Afghanistan in 2001 to topple what government?"

78% knows the answer to this question: "In what century did Winston Churchill lead the United Kingdom? "

And do you know the answer to this one? "What name is commonly used to refer to Nazi Germany?"