68% knows the answer to this question: "Why are many flowers brightly colored? "

And do you know the answer to this one? "What is deterioration of a metal by chemical or electrochemical reaction with its environment?"

51% knows the answer to this question: "In the early 1900's, John Larson invented a "polygraph" which is commonly known as what? "

And do you know the answer to this one? "In football, what is another name for a running play?"

58% knows the answer to this question: "Which opera term matches "a castrated male prized for his high singing voice"? "

And do you know the answer to this one? "What is the name of the breathing condition in which airways narrow?"

46% knows the answer to this question: "A bartender at Hotel Metropole in Brussels is credited with creating what cocktail in 1949, when he mixed vodka and coffee liqueur? "

And do you know the answer to this one? "What city was most closely associated with red, double decker Routemaster busses?"

37% knows the answer to this question: "What is any picture of an object made with a mirror or lens called? "

And do you know the answer to this one? "What is the name of the part of government that actually produces money?"

58% knows the answer to this question: "What is the piece of metal on a bridle that goes into the horse's mouth? "

And do you know the answer to this one? "The sharp angles and vivid hues Pablo Picasso painted were inspired by tribal masks from where?"

59% knows the answer to this question: "What did you see over _? "

And do you know the answer to this one? "Pick the correct sentence"

31% knows the answer to this question: "Which country was placed under an international oil embargo in 2012? "

And do you know the answer to this one? "Which of these was a name commonly given to the 1920s?"

46% knows the answer to this question: "President Harry Truman ordered the atomic bombing of which two Japanese cities? "

And do you know the answer to this one? "Which of the following was Jacques Cousteau best known as being?"

90% knows the answer to this question: "Which part of a pool keeps the water free of trash? "

And do you know the answer to this one? "What 1905 business in Pittsburgh, Pennsylvania, was originally known as a "nickelodeon"?"

88% knows the answer to this question: "What is used to make hummus? "

And do you know the answer to this one? "What Kentucky town sits on an $11 billion gold mine?"

86% knows the answer to this question: "Another term for rubella is which type of measles? "

And do you know the answer to this one? "Massive swarms of which insect regularly decimate the crops of Africa and the Middle East?"