73% knows the answer to this question: "These famous brothers both had F as a middle initial, standing for Fitzgerald or Francis, respectively. Who? "

And do you know the answer to this one? "What role did Daniel Manning play in Grover Cleveland's cabinet in 1885?"

70% knows the answer to this question: "Finish this line of Johnny Cash lyrics: "I keep the ends out for the tie that binds - Because you're mine, I walk ___________".  "

And do you know the answer to this one? "What are the correct lyrics to Deep Purple's biggest hit?"

85% knows the answer to this question: "Who had his own variety show in the 1950s? "

And do you know the answer to this one? "The 1950s actress Sophia Loren was from which country?"

64% knows the answer to this question: "Joanne Woodward was married to which fellow actor? "

And do you know the answer to this one? "Which country put the Mariner spacecraft into orbit?"

44% knows the answer to this question: "Martin Luther King donated his Nobel Prize money to which cause? "

And do you know the answer to this one? "Who was found guilty of killing Lee Harvey Oswald, who shot JFK?"

47% knows the answer to this question: "What did a greengrocer sell? "

And do you know the answer to this one? "Milkmen in the 70s and 80s delivered milk in which type of bottles?"

90% knows the answer to this question: "Which of these composers was born in Germany? "

And do you know the answer to this one? "World War I increased the public's desire for what type of clothing?"

76% knows the answer to this question: "In television technology, what was introduced in 1971 and is represented by the acronym VCR? "

And do you know the answer to this one? "A unit of measure relates cars to the power of what?"

47% knows the answer to this question: "In which European city is there a famous red-light district? "

And do you know the answer to this one? "What is the name of the song that is considered to be Australia's unofficial national anthem?"

81% knows the answer to this question: "What would you call a large wading bird? "

And do you know the answer to this one? "Yuri Gagarin, who became the first man to go into space in 1961, came from what country?"

61% knows the answer to this question: "Coal is what type of fuel? "

And do you know the answer to this one? "Detroit, Michigan is known as the what capital of the world?"

61% knows the answer to this question: "The Seine and Rhine are what in Europe? "

And do you know the answer to this one? "What country gets its name from the old Roman port of Portus Cale, now called Oporto?"