71% knows the answer to this question: "Which hot-tempered tennis legend won both Wimbledon and the U.S. Open in 1984? "

And do you know the answer to this one? "What was the world's largest city in 7000 BC?"

57% knows the answer to this question: "Which of the following is a red meat? "

And do you know the answer to this one? "Inarizushi and Makizushi are both types of what?"

55% knows the answer to this question: "Cumulus and stratus are types of what? "

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

40% knows the answer to this question: "Autobots and Decepticons were part of which toy range? "

And do you know the answer to this one? "What is the name of the genetic disorder that can cause eyes, skin and hair to have little or no colour?"

89% knows the answer to this question: "Who sang the famous song "Super Trouper" (1980)? "

And do you know the answer to this one? "Who sang the famous song "Every Little Thing She Does Is Magic" (1981)? "

86% knows the answer to this question: "Most metals are grey in color; what is the only metal that is yellow? "

And do you know the answer to this one? "What microscope uses a magnetic field to view specimens?"

75% knows the answer to this question: "In 2007, only 1% of US yogurt purchases were made using this "national" technique. By 2013, that number was 35%. What is it? "

And do you know the answer to this one? "King Edward VIII gave up the throne in 1936 in order to do what?"

47% knows the answer to this question: "Pericles built the Parthenon on a hill called the Acropolis. Where was this? "

And do you know the answer to this one? "Which one of these inventions or discoveries happened the most recently?"

72% knows the answer to this question: "Who sang the famous song "Son Of A Preacher Man" (1968) ? "

And do you know the answer to this one? "Who sang the famous song "Suspicious Minds" (1969)"

38% knows the answer to this question: "A humpback is a variety of which animal? "

And do you know the answer to this one? "Which is the use of scientific knowledge to solve everyday problems?"

61% knows the answer to this question: "Who sang the famous song "Man In The Mirror" (1988) ? "

And do you know the answer to this one? "Who sang the famous hit "It Was A Very Good Year" (1965) ?"

78% knows the answer to this question: "Who was the prime minister of Britain during most of World War II? "

And do you know the answer to this one? "Which of the following is NOT a type of human tooth?"