50% knows the answer to this question: "On US highways, what does the letter 'I' stand for? "

And do you know the answer to this one? "Mohandas Gandhi is known best as this?"

88% knows the answer to this question: "What King of England is known for having had six wives? "

And do you know the answer to this one? "Which big wheel is a major tourist attraction in London?"

60% knows the answer to this question: "What is the name for a Swiss house with a steep roof? "

And do you know the answer to this one? "In the 2007 movie "Ratatouille", Remy is what kind of animal?"

81% knows the answer to this question: "Which famous Renaissance painting by Leonardo da Vinci is known for its subject's mysterious smile? "

And do you know the answer to this one? "Which islands made the headlines in 1982 when they were invaded by Argentina?"

66% knows the answer to this question: "Which fictitious creature created by Dr. Seuss is said to have stolen Christmas? "

And do you know the answer to this one? "What is rock star Neil's last name?"

81% knows the answer to this question: "What heart operation can be a triple or a quadruple? "

And do you know the answer to this one? "What are soldiers who fight on horseback?"

91% knows the answer to this question: "Eleven percent of what island country is covered by glaciers? "

And do you know the answer to this one? "What is the female star of an opera called?"

84% knows the answer to this question: "Broken bones are usually held still while they heal with what? "

And do you know the answer to this one? "Prior to the Euro, what was the currency in France?"

75% knows the answer to this question: "Which Ford car was first released in the 1960s? "

And do you know the answer to this one? "Who was a famous artist in the 1960s?"

75% knows the answer to this question: "The headquarters of the London police are in which building? "

And do you know the answer to this one? "A freshwater or saltwater wetland found along rivers, ponds, lakes and coasts is a what?"

74% knows the answer to this question: "A man-made lake that stores water for future use is known as a what? "

And do you know the answer to this one? "Heathrow is an airport in which European city?"

67% knows the answer to this question: "Complete this 1994 single title by Celine Dion: 'The Power of?' "

And do you know the answer to this one? "Who built the first working magnetic telegraph in 1835 and also co-invented a special language, or code, that was compatible with it?"