47% knows the answer to this question: "Since sound travels through this gas nearly three times faster than it does through air, inhaling what gas makes you sound all squeaky? "

And do you know the answer to this one? "In what year did Nazi Germany invade the Netherlands?"

51% knows the answer to this question: "What animal was said to consume itself by fire? "

And do you know the answer to this one? "The flag of Japan is a white rectangle with what red shape in the middle?"

76% knows the answer to this question: "In what country would you find the world's third-longest river, the Yangtze? "

And do you know the answer to this one? "What term indicates the year in which a wine's grapes were harvested?"

85% knows the answer to this question: "What describes an extremely dry climate? "

And do you know the answer to this one? "The ancient Egyptians used a system of writing using symbols or pictures called what?"

55% knows the answer to this question: "What is the capital city of India? "

And do you know the answer to this one? "Best known as Dirty Harry and The Man With No Name, what actor is a self-taught jazz pianist?"

58% knows the answer to this question: "What word is a common substitute for the facsimile machine? "

And do you know the answer to this one? "Einstein's E=mc2 equation is known as the theory of what?"

35% knows the answer to this question: "What part of your body is ingrown if you're suffering from onychocryptosis? "

And do you know the answer to this one? "Elizabeth II became queen in the UK in 1952 after the death of which relation?"

43% knows the answer to this question: "Which of these animals lays eggs to give birth to their young? "

And do you know the answer to this one? "Which London road is traditionally associated with the British newspaper industry?"

75% knows the answer to this question: "What branch of chemistry is concerned with the chemistry of living organisms? "

And do you know the answer to this one? "Which of these chemicals removes odors from refrigerators?"

58% knows the answer to this question: "Defined one way, they're high school dances, especially in the 1950s. Defined another way, they're a key ingredient in beer. What are they? "

And do you know the answer to this one? "Which soft drink company used the slogan "Be a Pepper"?"

48% knows the answer to this question: "What Thai city has acquired the nickname "Sin City of Asia" for its level of sex tourism? "

And do you know the answer to this one? "The US state of Florida and the Australian state of Queensland share what nickname?"

41% knows the answer to this question: "What band was formed through the merger of LA Guns and Hollywood Roses? "

And do you know the answer to this one? "What city attracts thousands of tourists each year thanks to its links with the legend of Robin Hood?"