39% knows the answer to this question: "What department was established in the 1830s as a branch of the Office of the Commissioner of Patents, to distribute new seeds and plants? "

And do you know the answer to this one? "What hastily buried pharaoh's mummification was botched, leaving behind chemicals that exploded into flames some time after he was entombed?"

71% knows the answer to this question: "Charles Lindbergh's plane was called the "Spirit of " which American city? "

And do you know the answer to this one? "What was the reason for the sudden and rapid growth in population and economy that San Francisco experienced between 1848 and 1855?"

50% knows the answer to this question: "The Friedrichshafen G.III plane was used predominately by which country in World War I? "

And do you know the answer to this one? "Who led the slave revolt that ended in 71 BC?"

50% knows the answer to this question: "Which former First Lady died in 1994, 31 years after her husband was assassinated? "

And do you know the answer to this one? "What was the Model letter of Henry Ford's famous car?"

47% knows the answer to this question: "In which city was John F. Kennedy assassinated? "

And do you know the answer to this one? "What British politician and leader died April 8, 2013?"

54% knows the answer to this question: "What was the English King Richard I's nickname? "

And do you know the answer to this one? "Sparta, Athens and Crete are all cities of which ancient empire?"

37% knows the answer to this question: "What war ended on April 30, 1975, when the Viet Cong raised its flag above Independence Palace in Saigon? "

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?"

78% knows the answer to this question: "During which civil war did the battle of 'Tranter's Creek' take place? "

And do you know the answer to this one? "In which century was the Romantic poet Lord Byron born?"

47% knows the answer to this question: "Which of these was one of Abraham Lincoln's nicknames? "

And do you know the answer to this one? "Martin Luther was the founder of which branch of Christianity?"

72% knows the answer to this question: "The ancient Egyptian civilization was based around which river? "

And do you know the answer to this one? "Which country did Joan of Arc try to set free from English domination?"

57% knows the answer to this question: "Which of these wars started in 1914? "

And do you know the answer to this one? "In which US state did the Japanese attack Pearl Harbor in 1941?"

30% knows the answer to this question: "What was the first name of African-American 1930s athlete Owens? "

And do you know the answer to this one? "Queen's lead singer Freddie Mercury died in 1991 from pneumonia, as a result of what disease?"