49% knows the answer to this question: "Which of these is not a root we eat? "

And do you know the answer to this one? "Which ocean's water is the coldest?"

37% knows the answer to this question: "Which country launched the health care exchange for its Affordable Care Act in 2013? "

And do you know the answer to this one? "Of these, which is a web-based entrepreneur born in 1984? "

43% knows the answer to this question: "What web site was originally called AuctionWeb? "

And do you know the answer to this one? "Which US TV and film detective has famously never revealed his first name?"

85% knows the answer to this question: "The Secret Service was powerless when what wildlife attacked Secretary of State Hillary Clinton as she left a Malawi airport in 2012? "

And do you know the answer to this one? "What kind of bean is used to make tofu?"

36% knows the answer to this question: "In "E.T. the Extra-Terrestrial", E.T. makes what kind of vehicle fly through the air? "

And do you know the answer to this one? "What day does Bill Murray repeat endlessly in a 1990s cult movie set in Punxsutawney, Pennsylvania?"

51% knows the answer to this question: "Ray Charles had which state on his mind in 1960? "

And do you know the answer to this one? "In which country did the baguette originate from?"

94% knows the answer to this question: "The word 'car' is believed to come from the Latin carrus or carrum meaning what? "

And do you know the answer to this one? "Which dance style, known for its outrageous movements, became newly popular in the 1980's?"

31% knows the answer to this question: "What is the sprouting of a new plant structure called? "

And do you know the answer to this one? "In June 2015, controversial debates in the Southern U.S. occurred over the use of what object?"

74% knows the answer to this question: "With what artist did Kenny Rogers perform the duet 'Islands in the Stream'? "

And do you know the answer to this one? "The 1976 hit single by Wild Cherry was called 'Play That...' what?"

55% knows the answer to this question: "Who was Napoleon Bonaparte? "

And do you know the answer to this one? "Which two Japanese cities were bombed by atomic bombs in World War II?"

53% knows the answer to this question: "Leeds Castle in is which English county? "

And do you know the answer to this one? "Ireland's population grew phenomenally because of what New World food, then shrank again when the fungus Phytophthora infestans struck the crop in the 1840s?"

84% knows the answer to this question: "Famous American rock 'n roll singer and is widely known for popularisering many dance styles including the twist dance style. "

And do you know the answer to this one? "American-born singer also referred to as The Queen of Rock 'n' Roll."