52% knows the answer to this question: "In what century did the Portuguese first arrive in South America "

And do you know the answer to this one? "Which country was invaded in 1956 when it nationalised the Suez Canal?"

36% knows the answer to this question: "Scallop is a type of what? "

And do you know the answer to this one? "What year did Clinton get acquitted of impeachment charges?"

66% knows the answer to this question: "Who was the creator of the Mongol empire? "

And do you know the answer to this one? "Which pair of animal species and type is correct?"

90% knows the answer to this question: "Who had the hit single "Do That To Me One More Time" in 1980? "

And do you know the answer to this one? "In which 1985 film did Tina Turner appear?"

46% knows the answer to this question: "Which of these was a hit single for The Beatles in 1966? "

And do you know the answer to this one? "What hit single did Simon & Garfunkel have in 1966?"

70% knows the answer to this question: "What Russian emperor put down the streltsi (a Moscow version of the Beefeaters) after they rebelled while he was abroad in 1690s? "

And do you know the answer to this one? "Which finger is traditionally used to pull the trigger on a firearm?"

93% knows the answer to this question: "What 2013 film is about turkeys trying to survive Thanksgiving? "

And do you know the answer to this one? "What is the first name of boxing's Dempsey?"

46% knows the answer to this question: "Richard Burton began his tumultuous romance with Elizabeth Taylor while she was still married to Eddie Fisher, on the set of what 1963 biopic? "

And do you know the answer to this one? "In the 2007 film "Pirates of the Caribbean: At World's End", where is Jack rescued from?"

45% knows the answer to this question: "You can find the Wailing Wall at which location? "

And do you know the answer to this one? "What animal builds canals and multi-chambered homes called lodges, using wood that they gnaw so it doesn't crush them?"

62% knows the answer to this question: "Who sang the famous song "Blueberry Hill" (1957)? "

And do you know the answer to this one? "Who sang the famous song "Standing on the Corner (Blue Yodel #9)" (1930)?"

59% knows the answer to this question: "Who became the supreme leader of North Korea on December 28, 2011? "

And do you know the answer to this one? "What rapper ordered take-out for seven people from an Indian restaurant called British Raj, even though he was in New York City and British Raj was in Wales?"

31% knows the answer to this question: "What day does Bill Murray repeat endlessly in a 1990s cult movie set in Punxsutawney, Pennsylvania? "

And do you know the answer to this one? "Name Liza Minelli's mother."