93% knows the answer to this question: "What term describes the overflowing of rivers or streams? "

And do you know the answer to this one? "In 1643, one of Galileo's pupils, Evangelista Torricelli, put an empty tube on top of some mercury. When it was really nice out, more mercury was pushed up into the tube. What tool for measuring air pressure had he invented?"

53% knows the answer to this question: "Which of these farm animals comes from the Andes mountains? "

And do you know the answer to this one? "Who ruled the Soviet Union for more than two decades, instituting a reign of terror while modernizing Russia?"

56% knows the answer to this question: "What are materials that come from the earth called? "

And do you know the answer to this one? "What is the condition where lack of blood supply kills off tissue?"

55% knows the answer to this question: "Kingston is the capital of which country? "

And do you know the answer to this one? "Which US city is often called 'The Windy City'?"

86% knows the answer to this question: "What are the holes on top of a whale's head called? "

And do you know the answer to this one? "What 118-mile canal cuts more than 5000 miles out of a ship's trip from Britain to India?"

51% knows the answer to this question: "Which vegetable is not a head? "

And do you know the answer to this one? "What city is home to a temple remnant called the Western Wall, also known as the Wailing Wall?"

85% knows the answer to this question: "What does MTV stand for? "

And do you know the answer to this one? "What is the pulling force that the Earth exerts on every object near it?"

60% knows the answer to this question: "What shell-like building stands beneath Sydney Harbor Bridge, Australia? "

And do you know the answer to this one? "I'm a Scottish celebrity chef who hosts "Hell's Kitchen". Who am I?"

63% knows the answer to this question: "If you drive to your mom's house which is 300 miles away in 5 hours, what was your average speed? "

And do you know the answer to this one? "If muffins are in packages of six, and you want 330 muffins, how many packages do you need?"

61% knows the answer to this question: "A tisane is an herb infusion. What do you probably call it? "

And do you know the answer to this one? "Which member of the Rolling Stones was divorced by Bianca in 1978?"

61% knows the answer to this question: "What is energy of motion called? "

And do you know the answer to this one? "What are the tiny blood vessels that connect arteries and veins?"

88% knows the answer to this question: "Mount Fuji is the highest point in what country? "

And do you know the answer to this one? "The town of Cannes is located in which European country?"