65% knows the answer to this question: "What medieval plague killed off so much of Europe that those left behind had higher wages and more disposable income, which they used on linen clothes, which meant an abundance of rags, dropping the cost of paper over parchment, so it became economical for German goldsmith Johann Gansfleisch, better known by his mother's name of Gutenberg, to invent printing? "

And do you know the answer to this one? "London Pride is a famous beer from which European country?"

79% knows the answer to this question: "NASA released which famous photo of Mars in 1976? "

And do you know the answer to this one? "Which of the following is a small organism that can make your body sick?"

40% knows the answer to this question: "Who was the "me" in the Yoko Plus Me art exhibition? "

And do you know the answer to this one? "What famous ship left Southampton, England, reached Cherbourg, France, and Queenstown, Ireland, but never got to New York?"

61% knows the answer to this question: "Which animal's meat is referred to as mutton, particularly when the animal is an adult? "

And do you know the answer to this one? "The Royal Hawaiian Hotel at Waikiki in Honolulu claims to have invented non-alcoholic cocktail, naming it for a celebrity?"

88% knows the answer to this question: "Truth is stranger than ... "

And do you know the answer to this one? "The extinct mammoth was what type of animal?"

68% knows the answer to this question: "In which city was Louis Armstrong born? "

And do you know the answer to this one? "Pittsburgh Pirates are an MLB team in which US state?"

47% knows the answer to this question: "Who sang the famous song "(I Can’t Get No) Satisfaction" (1965)? "

And do you know the answer to this one? "Complete the title of the 2010 Michael Buble hit "Haven't Met You..."?"

82% knows the answer to this question: "Which country's anthem is 'La Marseillaise'? "

And do you know the answer to this one? "Of which country is Hanoi the capital?"

64% knows the answer to this question: "What symbol of Russia refers to a set of wooden dolls of decreasing size placed one inside the other? "

And do you know the answer to this one? "Cape Canaveral is located In what U.S. state?"

69% knows the answer to this question: "Which unit is usually used to show the definition of a digital camera's images? "

And do you know the answer to this one? "In which church are British monarch's' coronation ceremonies held?"

86% knows the answer to this question: "In the 1600s, Chef Francois Pierre de La Varenne likely founded what country's haute cuisine, as court chef to Louis XIV? "

And do you know the answer to this one? "Barium has which chemical symbol?"

77% knows the answer to this question: "What was the name of Tina Turner's singing and romantic partner? "

And do you know the answer to this one? "A Southeast Asian animal called the binturong, aka the Asian bearcat, smells like it belongs in a movie theatre. What does it smell like?"