99% knows the answer to this question: "How many players in a tennis doubles match? "

And do you know the answer to this one? "Which animated film is about a caveman family?"

96% knows the answer to this question: "Which of these is a mountain range in the USA? "

And do you know the answer to this one? "Which of these forms of carbon is South Africa particularly renowned for producing?"

97% knows the answer to this question: "Dwight D. Eisenhower belonged to which political party? "

And do you know the answer to this one? "Pierre Trudeau became Prime Minister of which country in 1968?"

91% knows the answer to this question: "Amerigo Vespucci was a 16th century explorer from which country? "

And do you know the answer to this one? "In which decade were robbers Bonnie and Clyde active?"

94% knows the answer to this question: "How many characters in the Famous Five plus the Secret Seven? "

And do you know the answer to this one? "I am the comedian who starred in "Mork and Mindy" as well as the voice of the genie in "Aladdin', who am I?"

97% knows the answer to this question: "In 2013, Russia arrested a group of protestors from which environmentalist group? "

And do you know the answer to this one? "What is the total cost of a chicken at £4.95 and chips at 80p?"

96% knows the answer to this question: "The Nile River runs through which of these countries? "

And do you know the answer to this one? "Which mathematical term means limitless?"

97% knows the answer to this question: "What is a million divided by two? "

And do you know the answer to this one? "What is 1.87 to the nearest whole number?"

94% knows the answer to this question: "What is half of 16, squared? "

And do you know the answer to this one? "What is a quarter of 64, plus 43?"

95% knows the answer to this question: "Edmund Hillary and Tenzing Norgay were the first people to reach the top of which mountain? "

And do you know the answer to this one? "In which sport was Floyd Patterson famous in the 1950s?"

97% knows the answer to this question: "Samuel Colt was a famous 1840s manufacturer of which product? "

And do you know the answer to this one? "Complete the Bee Gees hit song title, "I've Gotta Get a ... to You"?"

96% knows the answer to this question: "The start of which year was known as Y2K? "

And do you know the answer to this one? "Which European city has the largest Roman amphitheatre in the world?"