69% knows the answer to this question: "The fluorine in this binds so tightly to the carbon that it won't stick to anything else, included cooked-in food. What is it? "

And do you know the answer to this one? "Which of these comes first in the day?"

88% knows the answer to this question: "Pain in the cranial region is more commonly called a what? "

And do you know the answer to this one? "In 1992, who won the MTV Viewer's Choice Award for "Under The Bridge"?"

50% knows the answer to this question: "The UK's number one tourist attraction is what? "

And do you know the answer to this one? "Which European city is home to Charles de Gaulle Airport?"

48% knows the answer to this question: "Which of these is the amount of space a shape takes up? "

And do you know the answer to this one? "Who sang the famous song "Isn't She Lovely" (1976) ?"

84% knows the answer to this question: "To produce a tulip flower, a gardener must plant what? "

And do you know the answer to this one? "What semi-precious stone did the Chinese associate with so many human virtues that they carved it for ritual and decorative purposes?"

30% knows the answer to this question: "Being too heavy for one's height is called what? "

And do you know the answer to this one? "In what source can fluoride be found?"

40% knows the answer to this question: "Boyzone's UK No.1 'Words' was originally a hit for which group? "

And do you know the answer to this one? "Before its debut, what musical was seen as too complex and too bleak, especially since it originally ended with Maria shooting herself?"

72% knows the answer to this question: "An American golden plover is which type of animal? "

And do you know the answer to this one? "Which breed of dog has a black tongue? "

93% knows the answer to this question: "Which of Dustin Hoffman's future co-stars was originally considered for the role that made him a star in "The Graduate"? "

And do you know the answer to this one? "The villains in the 2007 version of the movie "Transformers" are known as what?"

68% knows the answer to this question: "Which of these was a kind of balloon invented in 1783? "

And do you know the answer to this one? "James I, William Rufus (William II), Richard the Lion-Hearted and Edward II may have been gay. And all were kings of what place?"

73% knows the answer to this question: "Which of these revolutionary leaders was heavily influenced by the teachings of Karl Marx? "

And do you know the answer to this one? "Who was Louis XVI?"

77% knows the answer to this question: "Which island off the coast of Africa is home to 6,000 flowering plants, half the world's chameleon varieties and most of its surviving lemurs? "

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