49% knows the answer to this question: "Which form of communication does a bird use? "

And do you know the answer to this one? "In which desert was there no rain for 10 years?"

75% knows the answer to this question: "What gem sparkles because it captures light and slows it down to about 40% of its top speed? "

And do you know the answer to this one? "My mom was a cougar. No, really. Not the younger-man-chasing kind, an actual feline. What was I?"

75% knows the answer to this question: "Where was Nelson Mandela imprisoned? "

And do you know the answer to this one? "What would you call "a sense of tiredness and losing stamina"?"

85% knows the answer to this question: "I sang with my brother in the 1970's and we had a talk show in the 1990's, who am I? "

And do you know the answer to this one? "The 1950s actress Sophia Loren was from which country?"

76% knows the answer to this question: "Where can you find the Eiffel Tower? "

And do you know the answer to this one? "What language do they speak in Rome? "

48% knows the answer to this question: "Until early 2008, Fidel Castro was the ruler of what country? "

And do you know the answer to this one? "Saddam Hussein was the President of which country?"

92% knows the answer to this question: "Which item of clothing do you wear inside of your shoes? "

And do you know the answer to this one? "Which of the following best relates to a policeman?"

53% knows the answer to this question: "What is a famous statue in Egypt that has the body of a lion and the head of a man? "

And do you know the answer to this one? "What is the Italian delicacy of cooked squid called?"

61% knows the answer to this question: "A bandana is a cloth accessory usually worn on the head or what? "

And do you know the answer to this one? "Which of these does the British and Australian term "bloke" describe?"

56% knows the answer to this question: "Brussels is the capital of which country? "

And do you know the answer to this one? "What is the most flexible muscle in the body? "

38% knows the answer to this question: "What is the native language of Vietnam? "

And do you know the answer to this one? "What was the name of the child found in a basket by the pharaoh's daughter?"

35% knows the answer to this question: "What are the claws of a bird of prey called? "

And do you know the answer to this one? "Vatican City is the capital of what country?"