56% knows the answer to this question: "What system is the body's defence against bacteria? "

And do you know the answer to this one? "What kind of wood is used for the barrels that age wine, rum and whiskey?"

39% knows the answer to this question: "If you are arguing the merits of the Red Delicious and the Valencia, what are you literally doing? "

And do you know the answer to this one? "Which one of these words means characterized by extreme anger?"

68% knows the answer to this question: "How many times does 5 go into 75? "

And do you know the answer to this one? "Name the boxer who wrote the book "12 Rounds to Victory"?"

51% knows the answer to this question: "Cappellini is included in which cuisine? "

And do you know the answer to this one? "Which Australian city is most famous for its opera house and harbour bridge? "

87% knows the answer to this question: "The utensil called a spork is a cross between a spoon and what other utensil? "

And do you know the answer to this one? "What is the missing word: Give a ... a fish and you feed him for a day. Teach a ... to fish and you feed him for a lifetime"

62% knows the answer to this question: "What do you call an object that uses symbols to depict land, roads and bodies of water? "

And do you know the answer to this one? "Which continent has the lowest population?"

42% knows the answer to this question: "Complete the Amen Corner hit song title, "(If Paradise Is) Half as ..."? "

And do you know the answer to this one? "Which animal was considered sacred by ancient Egyptians?"

82% knows the answer to this question: "On October 28, 1962, what Soviet leader announced over Radio Moscow that he had agreed to remove Soviet's missiles from Cuba? "

And do you know the answer to this one? "In what year was the battle of Waterloo?"

48% knows the answer to this question: "Wilson Pickett had a hit in 1965 with which of these songs? "

And do you know the answer to this one? "What is a region of Earth in which all areas share the same time called?"

57% knows the answer to this question: "Who created Facebook? "

And do you know the answer to this one? "Which of these mints, developed by crossbreeding water mint and spearmint, is the source of menthol, which soothes colds and coughs?"

44% knows the answer to this question: "What crispy skinned duck is named after a Chinese city? "

And do you know the answer to this one? "What number, when added to 7, gives 11?"

42% knows the answer to this question: "When La Marche de l'Empereur became March of the Penguins, a new voice was found to narrate the English edition. Who? "

And do you know the answer to this one? "Which number is the middle one in a set of ordered data?"