74% knows the answer to this question: "Which hot-tempered tennis legend won both Wimbledon and the U.S. Open in 1984? "

And do you know the answer to this one? "What was the world's largest city in 7000 BC?"

85% knows the answer to this question: "Vitamin B6 deficiency can cause what? "

And do you know the answer to this one? "Agents that prevent blood from clotting are called what?"

62% knows the answer to this question: "What language is spoken most widely in Saudi Arabia? "

And do you know the answer to this one? "In 1924, what was then Petrograd was renamed Leningrad. What is that city called today?"

85% knows the answer to this question: "Auschwitz-Birkenau was a Nazi extermination camp in which country? "

And do you know the answer to this one? "Who sung "These Boots Are Made For Walking"? "

33% knows the answer to this question: "What did Tony the Tiger say about Frosties? "

And do you know the answer to this one? "What is the name of the process used by plants to convert sunlight into food?"

77% knows the answer to this question: "In 1998, who split up with Bruce Willis the week they were featured on People's "Hollywood's Happy Couples" cover? "

And do you know the answer to this one? "What is the sticky substance used by some players to increase grip on the bat?"

82% knows the answer to this question: "What emperor, Russia's first, died when he leaped into the cold Gulf of Finland to save some drowning sailors? "

And do you know the answer to this one? "How many times has an Atomic Bomb been used in history?"

62% knows the answer to this question: "Who sang the famous song "La Bamba" (1958)? "

And do you know the answer to this one? "Who sang the famous song "Sorry Suzanne" (1969)? "

53% knows the answer to this question: "Who sang the famous song "Theme From 'New York, New York'" (1980) "

And do you know the answer to this one? "Who sang the famous song "Lola" (1970) ?"

78% knows the answer to this question: "In which city is the Arlington National Cemetery? "

And do you know the answer to this one? "Which country is located on the continent of North America?"

71% knows the answer to this question: "Who sang the famous song "Mama From the Train" (1956)? "

And do you know the answer to this one? "Who sang the famous song "Can You Find It in Your Heart" (1956)?"

44% knows the answer to this question: "What epidemic spread across almost all of Europe in the years 1346-53? "

And do you know the answer to this one? "Before going to watch Our American Cousin at Ford's Theater on April 14, 1865, whose last meal was mock turtle soup, roast Virginia fowl with chestnut stuffing, baked yams, and cauliflower with cheese sauce?"