30% knows the answer to this question: "Which unit is usually used to show the definition of a digital camera's images? "

And do you know the answer to this one? "In what War was the 1805 'Battle of Trafalgar' fought?"

85% knows the answer to this question: "Who invented the first engine-powered airplane? "

And do you know the answer to this one? "Humans have the same blood types as which animal?"

74% knows the answer to this question: "Silvio Berlusconi was expelled for what crime in 2013? "

And do you know the answer to this one? "Of the following British prime ministers, who was in office longest? "

87% knows the answer to this question: "Whose 2013 hit LP is "Believe"? "

And do you know the answer to this one? "In 1969, she decided to "Stand By Your Man" when she married George Jones, but in 1975, they got a "D-I-V-O-R-C-E." Who is she?"

59% knows the answer to this question: "Why did King Edward VII give up the British throne in 1936? "

And do you know the answer to this one? "In which century was the Romantic poet Lord Byron born?"

38% knows the answer to this question: "How were outlaws Robert Leroy Parker and Henry Longabough better known? "

And do you know the answer to this one? "What is Iran's largest city and the largest city in Western Asia?"

76% knows the answer to this question: "The ancient town of Bath is in which country? "

And do you know the answer to this one? "What mountain, the world's second highest, is in the Karakoram Range, in disputed Kashmiri territory?"

90% knows the answer to this question: "What candy added red back into its traditional color mix in 1987? "

And do you know the answer to this one? "What does DVD stand for?"

69% knows the answer to this question: "Which of these continent - country - capital groups is correct? "

And do you know the answer to this one? "Which of Batman's foes is the seductive Selina Kyle?"

70% knows the answer to this question: "What year did Congress first provide a minimum wage law? "

And do you know the answer to this one? "What is one of the largest living land animals?"

51% knows the answer to this question: "Who sang the famous song "You Can Call Me Al" (1986)? "

And do you know the answer to this one? "Who sang the famous song "I Just Cant Get Enough" (1981)? "

34% knows the answer to this question: "Which Johnny Weissmuller character's yell was apparently created by combining a violin G-string, a hyena's howl, a dog's growl and a camel's bleat? "

And do you know the answer to this one? "In which 2001 movie did Jet Li play the character Liu Jian?"