41% knows the answer to this question: "Who was credited with inventing the double-edged safety razor in 1901? "

And do you know the answer to this one? "A century ago, people were furiously debating woman's suffrage. What is this?"

44% knows the answer to this question: "It's thought that the Pacific tree frog is the only species of frog to make this noise, but because it lives in Hollywood, the sound became established through the movies. What sound is this? "

And do you know the answer to this one? "Despite Freddie Mercury's four-octave range, it is drummer Roger Taylor who sang the high b flat in the sixth octave at the end of what rock operetta?"

38% knows the answer to this question: "In what U.S. city is South Beach located? "

And do you know the answer to this one? "Which pair of animal species and type is correct?"

52% 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? "The Cerne Abbas giant is a chalk outline in Dorset of an aroused, club-wielding man. And pagans were really mad in 2007 when he was joined by an outline of what donut-eating, underwear-clad character?"

86% knows the answer to this question: "In which book would you expect to find the characters the Mad Hatter and the March Hare? "

And do you know the answer to this one? "Black Monday in 1987 refers to which of these areas?"

44% knows the answer to this question: "Founded in London in 1660, what is the name of the learned society that Isaac Newton, Lord Kelvin and Ernest Rutherford have all been presidents of? "

And do you know the answer to this one? "What is the most well known product of the Champagne region?"

86% knows the answer to this question: "The Lakers and Dodgers are sports teams located in which city? "

And do you know the answer to this one? "Mycologists can tell you whether you can eat this food, or whether it is a poisonous toadstool. What is it?"

75% knows the answer to this question: "Who sang the famous song Pretty Woman (1964)? "

And do you know the answer to this one? "In 2005, Prince Charles married what woman?"

50% knows the answer to this question: "In what movie does a giant Sta-Puft Marshmallow Man terrorise New York City? "

And do you know the answer to this one? "Christa McAuliffe was to have been the first civilian in space. What did she do for a living?"

42% knows the answer to this question: "What comes after 'Jailhouse' in the title of a 1957 Elvis movie? "

And do you know the answer to this one? "Rosa Parks refused to give up her seat on which method of transport in 1955?"

51% knows the answer to this question: "From which city did The Beatles hail? "

And do you know the answer to this one? "The science term, "drizzle", is best defined as?"

74% knows the answer to this question: "What does the word "constellation" mean? "

And do you know the answer to this one? "The song 'Climb Every Mountain' is from which 1965 film?"