0% knows the answer to this question: "Which of these UK cities is closest to Big Ben? "

And do you know the answer to this one? "Which Australian city is most famous for its opera house and harbour bridge? "

98% knows the answer to this question: "The official residence of the British Prime Minister is in which London street? "

And do you know the answer to this one? "What month has the least number of days?"

95% knows the answer to this question: "What does the C stand for in the lung condition COPD? "

And do you know the answer to this one? "OS stands for _________?"

100% knows the answer to this question: "What music genre is most often associated with Louis Armstrong? "

And do you know the answer to this one? "What technology company did Steve Jobs and Stephen Wozniak found in 1976?"

100% knows the answer to this question: "What famous British ocean liner hit an iceberg and sank in 1912? "

And do you know the answer to this one? "Which American invented the light bulb?"

98% knows the answer to this question: "What King of England is known for having had six wives? "

And do you know the answer to this one? "Tsar Ivan of which country married Anastasia Romanova in 1547?"

98% knows the answer to this question: "What is one of the main crops grown in Vietnam? "

And do you know the answer to this one? "Felis catus is the scientific name for which animal? "

97% knows the answer to this question: "Which type of fish comes in brook, brown, lake and rainbow varieties? "

And do you know the answer to this one? "In 2014, Bohuslav Sobotka became the Prime Minister of which Eastern European country?"

100% knows the answer to this question: "What polyethylene bowls made Earl Tupper a millionaire? "

And do you know the answer to this one? "Tetanus often is introduced through dirty wounds. By what name is it better known?"

98% knows the answer to this question: "Which band were Ozzy Osbourne, Bill Ward, Tony Iommi, and Geezer Butler in? "

And do you know the answer to this one? "Which actress daughter of Henry was known as Hanoi Jane in the '70's?"

94% knows the answer to this question: "In 1940, after seizing the French archives, the Nazis publically destroyed the master copy of what treaty? "

And do you know the answer to this one? "In 2013, several people were killed in a terrorist attack on a mall in which African country?"

94% knows the answer to this question: "Which of these 1960s films did not star Elvis Presley? "

And do you know the answer to this one? "Which actor was the first African-American to win an Academy Award?"