38% knows the answer to this question: "What is the more common name for sodium hydroxide? "

And do you know the answer to this one? "Finish the title of Billy Joel's signature song: "Piano ______"."

36% knows the answer to this question: "In 1994, which country became linked to mainland Britain by an under-the-sea tunnel? "

And do you know the answer to this one? "Which film is about little plastic toy building blocks?"

49% knows the answer to this question: "Alopecia' is an illness that causes severe what? "

And do you know the answer to this one? "The natural hallucinogen psilocybin is found in what?"

87% knows the answer to this question: "Which 1982 Steven Spielberg movie popularized the phrase "phone home"? "

And do you know the answer to this one? "Bleda the Hun may have been murdered on a hunting trip by what brother of his, who succeeded him?"

71% knows the answer to this question: "Barry Manilow had a hit with which song? "

And do you know the answer to this one? "Many thought Lucy in the Sky With Diamonds was a coded reference to lysergic acid diethylamide. What is this?"

71% knows the answer to this question: "Napoleon was the leader of which country? "

And do you know the answer to this one? "What American federal prison was located on an island in San Francisco Bay?"

76% knows the answer to this question: "Which bishop was a good friend of Nelson Mandela and assisted him during his presidency? "

And do you know the answer to this one? "Which country did St. Patrick help convert to Christianity?"

73% knows the answer to this question: "Descended from a wealthy aristocratic family, the young Plato joined the group of disciples of a famous philosopher who influenced him profoundly. Who was his teacher? "

And do you know the answer to this one? "Which operating system released it's 8th major edition in 2012?"

59% knows the answer to this question: "In what country is Mount Fuji located? "

And do you know the answer to this one? "In Snowboarding, what are natural gullies that snow boarders ride through?"

37% knows the answer to this question: "Which island in the Atlantic shares its name with a type of sponge cake? "

And do you know the answer to this one? "Which of London's boroughs includes the Houses of Parliament, #10 Downing Street and Buckingham Palace?"

67% knows the answer to this question: "In 2005, Prince Charles married what woman? "

And do you know the answer to this one? "Who sang the famous song Pretty Woman (1964)? "

46% knows the answer to this question: "What word is used to describe crops and foodstuffs grown without chemicals? "

And do you know the answer to this one? "What comet, which drops by every 76 years or so, last visited Earth in 1986?"