61% knows the answer to this question: "In 2014, scientists first converted normal cells into what kind of cells? "

And do you know the answer to this one? "The U.S. invaded Afghanistan in 2001 to topple what government?"

41% knows the answer to this question: "People of the Maasai tribe of Kenya traditionally make jewellery and pierce what body parts? "

And do you know the answer to this one? "Born in what is now in West Virginia, what nickname did Thomas Jonathan Jackson acquire at Bull Run?"

47% knows the answer to this question: "What caused the Great Famine that struck Ireland in 1845? "

And do you know the answer to this one? "What department was established in the 1830s as a branch of the Office of the Commissioner of Patents, to distribute new seeds and plants?"

79% knows the answer to this question: "TV soap opera "Dynasty" was first shown in which decade? "

And do you know the answer to this one? "In which country was Adolf Hitler born?"

93% knows the answer to this question: "Which 1935 New Deal program provided disabled and elderly people with monthly payments? "

And do you know the answer to this one? "Who ruled as Soviet dictator from 1924 until 1953?"

37% knows the answer to this question: "King Hussein of which country died in January 1999? "

And do you know the answer to this one? "What was the name of the symbols used in Ancient Egypt for writing?"

51% knows the answer to this question: "In which country did the Chernobyl nuclear plant explode in 1986? "

And do you know the answer to this one? "Which country started implementing a system called apartheid in 1949?"

79% knows the answer to this question: "What does a carnivore eat? "

And do you know the answer to this one? "Famous for its tacky tourist attractions, where could you get your kicks on, at least according to a Bobby Troup song?"

92% knows the answer to this question: "Which country should you visit if you want to see the Great Wall and Tiananmen Square ? "

And do you know the answer to this one? "Where is the Ho Chi Minh Trail?"

44% knows the answer to this question: "What was the name of the Soviet satellite launched on October 4, 1957? "

And do you know the answer to this one? "Who or what is The African Queen, for which a 1951 movie is named?"

54% knows the answer to this question: "Which invention, which makes use of phosphorous, was invented in 1827? "

And do you know the answer to this one? "The alligator gets its name from "el lagarto," meaning "the lizard" in what language?"

86% knows the answer to this question: "A young male horse is called a what? "

And do you know the answer to this one? "Most domesticated ducks are descended from what green-headed ducks?"