49% knows the answer to this question: "What dynasty built most of the present-day Great Wall of China as a way to keep out the Mongols? "

And do you know the answer to this one? "The coldest recorded temperature on Earth, -128 degrees F., was taken where?"

34% knows the answer to this question: "Famous in the First Gulf War, how was General Norman Schwarzkopf usually described? "

And do you know the answer to this one? "What is the name of the Macedonian king who conquered Persia? "

61% knows the answer to this question: "What river did the Ancient Egyptians build their civilisation on? "

And do you know the answer to this one? "What was Italy's traditional currency before the euro?"

39% knows the answer to this question: "What gas that you breathe, necessary for life, is also dissolved in ocean water? "

And do you know the answer to this one? "Where does FAQ stand for?"

85% knows the answer to this question: "What is a woven fabric made from fleece or sheep fibers? "

And do you know the answer to this one? "What is musician Ozzy Osbourne's real name?"

87% knows the answer to this question: "A mason usually worked with which material? "

And do you know the answer to this one? "What plague that killed a quarter, maybe as much as a third, of the European population from 1347 to 1352?"

78% knows the answer to this question: "What special shoes did Dorothy wear in the movie "The Wizard of Oz"? "

And do you know the answer to this one? "With which of these industries would you associate the brand "Lufthansa"?"

36% knows the answer to this question: "Which story is about a woman dealing with the boss from hell at a stylish magazine? "

And do you know the answer to this one? "What does ITTF, the governing body for all international table tennis associations, stand for?"

83% knows the answer to this question: "Who performed a new version of his song "Candle in the Wind" at the Princess Diana's funeral service? "

And do you know the answer to this one? "Who is Edwin "Buzz" Aldrin?"

58% knows the answer to this question: "Which nationality does pork and shrimp won ton belong to? "

And do you know the answer to this one? "Defined one way, they're high school dances, especially in the 1950s. Defined another way, they're a key ingredient in beer. What are they?"

36% knows the answer to this question: "From what perspective does a map shows what the earth looks like? "

And do you know the answer to this one? "What is an 8 letter word meaning "any combination or union for some common purpose"?"

68% knows the answer to this question: "What is the study of atmospheric conditions and climate called? "

And do you know the answer to this one? "What are the building blocks of all plants and animals? "