64% knows the answer to this question: "In which decade did Elvis have his first No.1? "

And do you know the answer to this one? "What sort of cheese is known for having big holes in it?"

43% knows the answer to this question: "The nerve that conveys visual information to the brain from the retina is called the what nerve? "

And do you know the answer to this one? "Success has many fathers, while ... is an orphan"

72% knows the answer to this question: "What is the London street address of fictional detective Sherlock Holmes? "

And do you know the answer to this one? "On the first of November, Spain celebrates "Todos los Santos" which translates to what in English?"

83% knows the answer to this question: "Who was the first Norman King of England, reigning from 1066 until his death in 1087? "

And do you know the answer to this one? "What year did the Nuremberg laws get enacted by the Nazis?"

94% knows the answer to this question: "Which country invented the pocket calculator? "

And do you know the answer to this one? "What kind of sauce is made by boiling liquid down to concentrate the flavor?"

30% knows the answer to this question: "Which team won the 2010-11 Premier League, their 12th Premier League title? "

And do you know the answer to this one? "What is the only month that can go by without a full moon?"

38% knows the answer to this question: "If Naples remodelled itself to look more like the Neapolitan ice cream named for it, what would they need to do? "

And do you know the answer to this one? "Despite being set in Egypt, what movie was banned there because its star, Elizabeth Taylor, had converted to Judaism?"

89% knows the answer to this question: "Who sang the famous song "Knowing Me, Knowing You" (1977)? "

And do you know the answer to this one? "Who sang the famous song "Gypsy, Tramps And Thieves" (1971)?"

56% knows the answer to this question: "Which US state had a gold rush from 1848 to 1855? "

And do you know the answer to this one? "Which of the following wars took place before World War II?"

45% knows the answer to this question: "Which currency came about following the 1992 signing of the Maastricht Treaty? "

And do you know the answer to this one? "In which century was the American-born actress and singer Josephine Baker born?"

33% knows the answer to this question: "Vodka's name means "little water" in what language? "

And do you know the answer to this one? "Which nationality do Boston baked beans belong to?"

37% knows the answer to this question: "Poisoning of what can be called toxaemia or septicaemia? "

And do you know the answer to this one? "Which country's highest elevation point is Vaalserberg (321 meters above sea level), and is located in Europe?"