89% knows the answer to this question: "In 1978, Robert K. Jarvik was credited with which invention/discovery? "

And do you know the answer to this one? "Which President's regime was dominated by the American Civil War?"

47% knows the answer to this question: "Who was Abraham Lincoln? "

And do you know the answer to this one? "In entertainment, what do the initials NBC stand for?"

84% knows the answer to this question: "The Delta Blues originated in which location? "

And do you know the answer to this one? "Where did the Boston Tea Party take place?"

88% knows the answer to this question: "Which of these is not a popular ice cream topping? "

And do you know the answer to this one? "Which of these landforms is an area of land lying between hills or mountains?"

33% knows the answer to this question: "The acronym "EU", when referring to a group of European nations, stands for what? "

And do you know the answer to this one? "What is pain resulting from insufficient blood to the heart?"

58% knows the answer to this question: "What is the first letter of the Greek alphabet? "

And do you know the answer to this one? "The kidnapping of which woman led to the Trojan War?"

38% knows the answer to this question: "What Spanish-speaking nation got its name from its position on the Equator? "

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?"

39% knows the answer to this question: "The C in "The OC" is for "County." What conservative California county, home to Richard Nixon, gives us the O? "

And do you know the answer to this one? "What is Broadway famous for, especially between 42nd Street and 50th Street?"

54% knows the answer to this question: "Before becoming Radioactive Man, Chen Lu was which of these? "

And do you know the answer to this one? "Omni Consumer Products produced a retail version of Anchorman's Sex Panther Cologne as well as of what movie's Stay Puft Marshmallows?"

45% knows the answer to this question: "What city is the hometown of the Beatles? "

And do you know the answer to this one? "Where is the singer while "lookin' down on creation" in a 1973 song by The Carpenters?"

59% knows the answer to this question: "Which 1975 film does this quote, "I'd like to do your hair some time," appear in? "

And do you know the answer to this one? "The Mojave Desert is partly in which of these US states?"

35% knows the answer to this question: "Edvard Munch's "The Scream" depicts a figure standing on a bridge doing what? "

And do you know the answer to this one? "In what city can you visit the Exploratorium, Coit Tower and Fisherman's Wharf?"