31% knows the answer to this question: "In what US state are the cities of Philadelphia, Pittsburgh and Harrisburg located? "

And do you know the answer to this one? "The climate of Iceland is best described as what?"

69% knows the answer to this question: "What body of water touches the eastern coast of Mexico? "

And do you know the answer to this one? "What is the official language of Poland?"

30% knows the answer to this question: "Which former Prime Minister of Israel died in 2014? "

And do you know the answer to this one? "About what did a U.N. panel give a dire forecast in 2007?"

39% knows the answer to this question: "Which one of these inventions or discoveries happened the most recently? "

And do you know the answer to this one? "Jerry Lee Lewis caused a scandal by marrying whom?"

33% knows the answer to this question: "What is the southern most point on Earth? "

And do you know the answer to this one? "Hanoi is the capital of which country?"

41% knows the answer to this question: "Vienna is the capital of which European country? "

And do you know the answer to this one? "Where is the Eurotunnel?"

37% knows the answer to this question: "Which famous scientist was born in Germany in 1879, became a Swiss citizen in 1901 and later became a US citizen in 1940? "

And do you know the answer to this one? "Which of the following was Jacques Cousteau best known as being?"

77% knows the answer to this question: "Who sang the famous song "Jumping Jack Flash" (1968) "

And do you know the answer to this one? "Who sang the famous song "Vogue" (1990) ?"

35% knows the answer to this question: "Woody Allen directed and starred in which movie in 1977? "

And do you know the answer to this one? "In what year did the Berlin Airlift begin?"

36% knows the answer to this question: "What is the state capital of Colorado? "

And do you know the answer to this one? "According to the O'Jays, where is the clock?"

35% knows the answer to this question: "Purple jelly, jam and popsicles are all made from which fruit? "

And do you know the answer to this one? "Who sang the famous song "Call Me" (1980)?"

58% knows the answer to this question: "The city of Fort Worth is located in which US state? "

And do you know the answer to this one? "What vegetable do you julienne to make french fries? "