33% knows the answer to this question: "What Spanish-speaking nation is located just south of the United States? "

And do you know the answer to this one? "What May birthstone gets its name from the Persian word for green?"

43% knows the answer to this question: "Until 1820, most immigrants from this country to America were Protestant, and inhabited Appalachia, but after a potato famine they were Catholic and came to big cities. What country is this? "

And do you know the answer to this one? "What is Europe's most visited theme park?"

44% knows the answer to this question: "Larry LaPrise and his Ram Trio just put their right feet in and put their right feet out when they created what dance in the late 1940s? "

And do you know the answer to this one? "What group was originally known as the Pendletones, after the Pendleton woollen shirts then popular with surfers?"

76% knows the answer to this question: "Which of these is a North American raptor or bird of prey? "

And do you know the answer to this one? "What number comes after 'Catch' in a 1961 Joseph Heller novel?"

77% knows the answer to this question: "What system helps animals exchange carbon dioxide and oxygen? "

And do you know the answer to this one? "What is the only mammal capable of true flight?"

36% knows the answer to this question: "Where in the USA is Mission Control Centre? "

And do you know the answer to this one? "As Tony the Tiger explained, how do Frosted Flakes taste?"

64% knows the answer to this question: "To which food groups do a hot dog and a bun belong? "

And do you know the answer to this one? "Which of the following is not a root vegetable?"

43% knows the answer to this question: "The famous opera house in which Australian city opened in 1973? "

And do you know the answer to this one? "Who got into Guinness for his record 15 roles in the film Chinese Zodiak, including director, producer, actor, fight choreographer and composer?"

44% knows the answer to this question: "Johannes Meyer and Johannes Rissik founded Johannesburg, which they appear to have named for themselves. Where is it? "

And do you know the answer to this one? "What is the opposite to ordinary matter called?"

84% knows the answer to this question: "Which of the following is an oven used to fire pottery or ceramics? "

And do you know the answer to this one? "Put your glad rags on and join me, hon, we'll have some fun when the clock strikes one. What will we do then?"

54% knows the answer to this question: "Tijuana, Ensenada, Acapulco and Cancun are cities in what country? "

And do you know the answer to this one? "What country has considered changing its national anthem to Sibelius's Finlandia?"

52% knows the answer to this question: "Richard Burton married which actress in 1964? "

And do you know the answer to this one? "What is the capital of Egypt? "