58% 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?"

42% 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?"

36% knows the answer to this question: "Redwood is a shade of which color? "

And do you know the answer to this one? "Which word used for a press photographer originated in the 60s?"

39% 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?"

87% knows the answer to this question: "In what US state can you visit the Everglades? "

And do you know the answer to this one? "Which of the following Presidents died in the state of Texas?"

84% knows the answer to this question: "What is 97 plus 32? "

And do you know the answer to this one? "What is added to 56 to make 99?"

94% knows the answer to this question: "What symbol did Crusaders wear on their clothes in the Middle Ages? "

And do you know the answer to this one? "Jacques Cartier claimed Canada for which country in 1534?"

48% knows the answer to this question: "Astronomer Edmund Halley gave his name to what celestial body? "

And do you know the answer to this one? "The IRA were mostly active in which part of the UK through the 70s and 80s?"

35% knows the answer to this question: "Spaghetti and pizza are foods originating from which country? "

And do you know the answer to this one? "What does the abbreviation C.I.A. stand for?"

77% knows the answer to this question: "What do city trucks spread on roads to melt ice? "

And do you know the answer to this one? "Famous as a party destination, what "drunken" New Orleans street is found between Canal and Esplanade?"

61% knows the answer to this question: "The Mamas and the Papas were "Dreamin" about which US state in 1966? "

And do you know the answer to this one? "Jack the Ripper was a serial killer which prowled the streets of which city?"

57% knows the answer to this question: "An old wives' tale says cracking your knuckles causes which condition? "

And do you know the answer to this one? "What was the first name of Ms Lewinsky who hit the headlines in 1998?"