65% knows the answer to this question: "U-boat was the code name for a type of what? "

And do you know the answer to this one? "The last veteran anywhere in the world of World War I was Florence Green, who had been a member of what country's Women's Royal Air Force?"

50% knows the answer to this question: "What is the name of a print made by cutting a design in a wood block? "

And do you know the answer to this one? "What is the term given for something drawn by hand, without the use of any mechanical device?"

86% knows the answer to this question: "What country's flag once included the banners of the United Kingdom, Transvaal and the Orange Free State? "

And do you know the answer to this one? "What color is the maple leaf at the center (or centre, as it were) of Canada's flag?"

59% knows the answer to this question: "What number is equal to Roman numeral V? "

And do you know the answer to this one? "Getting its name from the Latin word for charcoal, what element is symbolized on the periodic table by the letter C?"

94% knows the answer to this question: "What is the name of the Secretary of State who began her service under President George W. Bush in 2005? "

And do you know the answer to this one? "Who became the new Pope in 2013?"

62% knows the answer to this question: "What number do you need to add to 128 to equal 200? "

And do you know the answer to this one? "The ocean between North America and Europe is known by what name?"

83% knows the answer to this question: "Who protects the Pope in Vatican City? "

And do you know the answer to this one? "In which region of the United States is the state of California located?"

55% 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? "Who was Pancho Villa?"

70% knows the answer to this question: "What city was divided, almost overnight, by a wall that went up on August 13, 1961? "

And do you know the answer to this one? "What is the name of President Bill Clinton's first child?"

66% knows the answer to this question: "The Heimlich Maneuver, named for a Cincinnati physician, is normally used to help whom? "

And do you know the answer to this one? "Who did Michael Jackson marry in 1994?"

52% knows the answer to this question: "What is another term used for capital letters? "

And do you know the answer to this one? "In what city was John F. Kennedy assassinated?"

85% knows the answer to this question: "Who wrote "Through the Looking-Glass"? "

And do you know the answer to this one? "Who wrote the novel "Animal Farm"?"