41% knows the answer to this question: "Steffi Graf was a 1980s tennis player from which country? "

And do you know the answer to this one? "With what other country did Tanganyika merge to form present day Tanzania in 1964?"

41% knows the answer to this question: "René Descartes was from which country? "

And do you know the answer to this one? "The Sopwith Bulldog plane was used predominantly by which country in World War I?"

30% knows the answer to this question: "Francisco Orellana ended up the first white to navigate the Amazon to its mouth, but he was really looking for what city, where kings were covered in gold dust? "

And do you know the answer to this one? "What year did Salvador Dali paint "Persistence of Memory"?"

50% knows the answer to this question: "What country bombed Pearl Harbor in World War II? "

And do you know the answer to this one? "Who first published "The Adventures of Huckleberry Finn" in 1885?"

52% knows the answer to this question: "Which islands made the headlines in 1982 when they were invaded by Argentina? "

And do you know the answer to this one? "Which soft drink's distinct curved bottle was modeled after the cola nut?"

65% knows the answer to this question: "What year did Queen Elizabeth II ascend to the throne? "

And do you know the answer to this one? "What color are dried vanilla pods?"

65% knows the answer to this question: "Gout usually affects which part of the body? "

And do you know the answer to this one? "Plans were announced to build the Thames Barrier in which city in 1970?"

64% knows the answer to this question: "The death of every member of a particular species is known as what? "

And do you know the answer to this one? "Which 1960's sitcom featured Jed, his mother-in-law Granny and neighbors called the Drysdales?"

43% knows the answer to this question: "There is ... among thieves "

And do you know the answer to this one? "Each of these expressions is based on a scientific misunderstanding. But which one is the title of a Pink Floyd album?"

67% knows the answer to this question: "A neuron is a type of which sort of cell? "

And do you know the answer to this one? "How many fingers plus toes do most people have?"

89% knows the answer to this question: "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? "

And do you know the answer to this one? "Which of these movies is about vampires?"

81% knows the answer to this question: "What kind of pasta looks like a little pillow? "

And do you know the answer to this one? "Which vegetable comes in green and white varieties?"