54% knows the answer to this question: "If you buy a $20.00 item with 5% tax, what is the cost? "

And do you know the answer to this one? "An octagon with each side 24 inches long, what is the perimeter?"

32% knows the answer to this question: "What is a common unit of depth in the ocean? "

And do you know the answer to this one? "When are you most likely to spot a nocturnal animal?"

50% knows the answer to this question: "What object, which debuted in 1949, is sometimes called a "45"? "

And do you know the answer to this one? "What technical term is used to describe copying something from a web server to a computer?"

46% knows the answer to this question: "In which country did Joan of Arc lead an army? "

And do you know the answer to this one? "Jazz was born when slaves mixed Irish jigs and African dances. Later, Creole musicians added brass instruments to the mix. Where did this happen?"

37% knows the answer to this question: "In what state was John F Kennedy assassinated? "

And do you know the answer to this one? "What is a seven-letter word meaning "writing in which the letters are joined together"?"

73% knows the answer to this question: "Which of these held up buildings in Ancient Rome and Greece? "

And do you know the answer to this one? "What did London's Whitechapel Bell Foundry deliver in August 1752, in time to celebrate Pennsylvania's 50th birthday?"

42% knows the answer to this question: "TV Land put up a bronze statue of Elvis, wearing his bejewelled jumpsuit, in what city, on the very site of his 1973 Aloha From Hawaii concert? "

And do you know the answer to this one? "He'll be back ... in a big car. In 1992, what California Republican bought the first commercially available Hummer, and eventually started converting his Hummer fleet to green fuels?"

72% knows the answer to this question: "In 1982, 4 streets in which UK city were renamed after the members of the Beatles? "

And do you know the answer to this one? "Mohandas Gandhi was a peace-loving man who led India to independence through what? "

63% knows the answer to this question: "In which capital city would you find the Louvre? "

And do you know the answer to this one? "What year was the dictator Fidel Castro born?"

89% knows the answer to this question: "What is the "RER" in Paris? "

And do you know the answer to this one? "What is the popular name for the kind of English used informally in Singapore?"

94% knows the answer to this question: "What is the common name for the currency of the Republic of India? "

And do you know the answer to this one? "What civilization built the great city of Machu Pichu in Peru?"

47% knows the answer to this question: "What is the British Union flag known as? "

And do you know the answer to this one? "Who orchestrated the brutal murder of Sharon Tate?"