64% knows the answer to this question: "Of these, which is a city in Colorado? "

And do you know the answer to this one? "Over which Scottish town did a Pan Am jumbo explode in '88 as the result of a bomb?"

73% knows the answer to this question: "Old Trafford, home to Manchester United, is in which European country? "

And do you know the answer to this one? "With which country was there a policy of apartheid (racial segregation) until 1991?"

80% knows the answer to this question: "Jose Cuervo got a land grant in Mexico from the King of Spain in 1758, so that he could make what potent potable? "

And do you know the answer to this one? "What has Jason Bourne lost at the start of the 2007 thriller "The Bourne Ultimatum"?"

58% knows the answer to this question: "Who was John F. Kennedy? "

And do you know the answer to this one? "In 2013, Hassan Rouhani became the new President of which country?"

48% knows the answer to this question: "Which type of paragraph groups items into categories? "

And do you know the answer to this one? "In "1984", which figure served as the leader of The Party?"

47% knows the answer to this question: "A purple stripe on a Roman tunic was a sign of what? "

And do you know the answer to this one? "Why would you want a HVAC system for your house?"

84% knows the answer to this question: "Hydrogen is the first element on the periodic table. What is the second? "

And do you know the answer to this one? "The scale like bark is a characteristic of which plant?"

70% knows the answer to this question: "What do indefinite pronouns refer to? "

And do you know the answer to this one? "During the American civil War, in which year did the battle of 'Santa Rosa Island' take place?"

43% knows the answer to this question: "Francisco Orellana ended up the first white to navigate the Amazon to its mouth, but he was really looking for what city, where kings were covered in gold dust? "

And do you know the answer to this one? "The Hundred Years' War was fought between which two countries?"

86% knows the answer to this question: "Which country has the smallest population? "

And do you know the answer to this one? "What two countries are connected by the Khyber Pass?"

75% knows the answer to this question: "Which famous musician disappeared whilst onboard a plane in 1944? "

And do you know the answer to this one? "Who had hit songs doing duets with Michael Jackson and Stevie Wonder in the 1980s?"

46% knows the answer to this question: "Stephen Hawking proposed a new theory on what in 1974? "

And do you know the answer to this one? "Woody Allen directed and starred in which movie in 1977?"