30% knows the answer to this question: "What was the English King Richard I's nickname? "

And do you know the answer to this one? "What epidemic spread across almost all of Europe in the years 1346-53?"

47% knows the answer to this question: "What war ended on April 30, 1975, when the Viet Cong raised its flag above Independence Palace in Saigon? "

And do you know the answer to this one? "What did London's Whitechapel Bell Foundry deliver in August 1752, in time to celebrate Pennsylvania's 50th birthday?"

50% knows the answer to this question: "Which of these celebrities publically endorsed Barack Obama in early 2008? "

And do you know the answer to this one? "Which of these meals does not contain protein?"

57% knows the answer to this question: "In which bay is Alcatraz located? "

And do you know the answer to this one? "Which is the only continent without snakes or reptiles?"

64% knows the answer to this question: "Which vegetables are named for the capital city of Belgium? "

And do you know the answer to this one? "Which of these is not one of the boroughs that makes up the city of New York?"

42% knows the answer to this question: "Which of these Chinese dishes is made with noodles? "

And do you know the answer to this one? "What archipelago did Mark Twain call "the loveliest fleet of islands anchored in any ocean"?"

52% knows the answer to this question: "What is the scientific name for laughing gas? "

And do you know the answer to this one? "Where would you go to visit Montego Bay?"

77% knows the answer to this question: "Who sang the song, "Livin' la Vida Loca"? "

And do you know the answer to this one? "Who sang the famous song "In The Ghetto" (1969) ?"

50% knows the answer to this question: "Who sang the famous song "Respect" (1968)? "

And do you know the answer to this one? "Who sang the famous song "Careless Whisper" (1984) ?"

63% knows the answer to this question: "What is a fifth of 40? "

And do you know the answer to this one? "What is the capital of Japan and the most populous metropolitan area in the world?"

84% knows the answer to this question: "Which of these famous philosophers is Greek? "

And do you know the answer to this one? "What is the post code known as in America?"

75% knows the answer to this question: "In 1986, plans were announced for a tunnel under which European body of water? "

And do you know the answer to this one? "Which is a famous tap dancer?"