90% knows the answer to this question: "What animal has the biggest ears, even though they have more to do with keeping it cool than hearing better? "

And do you know the answer to this one? "What song hit #1 in 1964 by Roy Orbison?"

49% knows the answer to this question: "What shape is the Washington, D.C. Department of Defense headquarters which opened in 1943? "

And do you know the answer to this one? "What is 93 doubled, plus 7?"

70% knows the answer to this question: "When playing musical instruments, the tones that can be played are called what? "

And do you know the answer to this one? "In the musical "Oklahoma," what is "as high as an elephant's eye"?"

93% knows the answer to this question: "Rogers and Hammerstein had a hit 50s musical about the south of which ocean? "

And do you know the answer to this one? "Elvis moved to Memphis in which US state when he was 13?"

57% knows the answer to this question: "What animal is a meat-eating, freshwater fish? "

And do you know the answer to this one? "In which city were there protests in Tiananmen Square in 1989?"

72% knows the answer to this question: "What is twice 35, plus 30? "

And do you know the answer to this one? "Martha bought a banana for 55p. How much change did she get from her £1 coin?"

59% knows the answer to this question: "What was the name of the famous 1990s space telescope? "

And do you know the answer to this one? "What is 51 doubled, less 10?"

80% knows the answer to this question: "Which word used for a press photographer originated in the 60s? "

And do you know the answer to this one? "Redwood is a shade of which color?"

62% knows the answer to this question: "Michael Phelps swept the board in which sport at the 2008 Olympics? "

And do you know the answer to this one? "What type of government did the USSR have until 1991?"

59% knows the answer to this question: "Houston is located in which US state? "

And do you know the answer to this one? "Which soft drink had the slogan "The Friendly Pepper-Upper"?"

37% knows the answer to this question: "In what year was Maggie Thatcher first elected UK Prime Minister? "

And do you know the answer to this one? "What is the name of the part of government that actually produces money?"

82% knows the answer to this question: "A Pharaoh was a ruler of which ancient land? "

And do you know the answer to this one? "In which US state did the Japanese attack Pearl Harbour in 1941?"