84% knows the answer to this question: "What is long-running singer Ms Springfield's first name? "

And do you know the answer to this one? "Oil, coal and natural gas are known as what?"

43% knows the answer to this question: "Another term for rubella is which type of measles? "

And do you know the answer to this one? "Massive swarms of which insect regularly decimate the crops of Africa and the Middle East?"

62% knows the answer to this question: "What is used to make hummus? "

And do you know the answer to this one? "What Kentucky town sits on an $11 billion gold mine?"

37% knows the answer to this question: "Which part of a pool keeps the water free of trash? "

And do you know the answer to this one? "What 1905 business in Pittsburgh, Pennsylvania, was originally known as a "nickelodeon"?"

67% knows the answer to this question: "Which Asian country landed a rover on the Moon in 2013? "

And do you know the answer to this one? "President Harry Truman ordered the atomic bombing of which two Japanese cities?"

33% knows the answer to this question: "Which of these was a name commonly given to the 1920s? "

And do you know the answer to this one? "Which country was placed under an international oil embargo in 2012?"

59% knows the answer to this question: "What did you see over _? "

And do you know the answer to this one? "Pick the correct sentence"

77% knows the answer to this question: "What do electricians use to test circuits? "

And do you know the answer to this one? "What is table salt's chemical name?"

93% knows the answer to this question: "In what U.S. state are the cities of Philadelphia, Pittsburgh and Harrisburg located? "

And do you know the answer to this one? "In 1970, Alan Shugart was credited with which invention/discovery?"

57% knows the answer to this question: "What does the phrase "card shark" mean? "

And do you know the answer to this one? "What unit of measurement is one-thousandth of a gram?"

89% knows the answer to this question: "When performing ballroom dance, who usually leads? "

And do you know the answer to this one? "I'm an Olympic swimmer who won 22 medals. Who am I?"

50% knows the answer to this question: "Taiwan is considered to be part of which continent? "

And do you know the answer to this one? "In which of these countries would you find aborigines?"