67% knows the answer to this question: "What was the name of Germany's World War Two boat created by Admiral Karl Donitz? "

And do you know the answer to this one? "Towards what historical city do Muslims face when praying?"

95% knows the answer to this question: "What object, which debuted in 1949, is sometimes called a "45"? "

And do you know the answer to this one? "The Sino-Japanese war was fought between Japan and which country?"

74% knows the answer to this question: "Who wrote "The Ugly Duckling"? "

And do you know the answer to this one? "In "Sing a Song of Sixpence", how many blackbirds were baked in a pie?"

76% knows the answer to this question: "Finish the title of Billy Joel's signature song: "Piano ______". "

And do you know the answer to this one? "Which of these was a hit single for The Mamas & the Papas in 1966?"

51% knows the answer to this question: "In 2005, Prince Charles married what woman? "

And do you know the answer to this one? "What cocktail, made from vodka and cranberry juice and popular with women in the 1990s, shares its name with a magazine also popular with women in the 1990s?"

30% knows the answer to this question: "What function did the Ancient Egyptian pyramid's perform? "

And do you know the answer to this one? "From What disease did the Romantic poet John Keats die?"

52% knows the answer to this question: "Which of these is the name of a 1950s sitcom? "

And do you know the answer to this one? "Rock Around the Clock' was a single by which 1950s artist? "

87% knows the answer to this question: "Which child star and U.S. ambassador is also a Santa Monica native? "

And do you know the answer to this one? "What causes the blueness in blue vein cheese?"

39% knows the answer to this question: "In what country was Mahatma Gandhi born? "

And do you know the answer to this one? "What kind of astronomical body is officially known as IP/Halley?"

43% knows the answer to this question: "Who sang the famous song Carrie Anne (1967)? "

And do you know the answer to this one? "Who sang the famous song Like A Rolling Stone (1965)? "

54% knows the answer to this question: "What New York park is home the Metropolitan Museum of Art (on Fifth Avenue), its own zoo, a meteorological observatory and a former arsenal? "

And do you know the answer to this one? "On what continent do the borders of Botswana, Namibia, Zambia and Zimbabwe meet at a single point called the Four Corners Heartland?"

41% knows the answer to this question: "Pregnancy in humans lasts how many days? "

And do you know the answer to this one? "What group of animals is warm-blooded and has fur or hair?"