49% knows the answer to this question: "Who sang the famous song "Mamma Mia" (1975) ? "

And do you know the answer to this one? "Who sang the famous song "Yesterday Once More" (1973)"

39% knows the answer to this question: "Ukraine shares a border to the east with what European country? "

And do you know the answer to this one? "Shrimp and algae are full of carotene, and the more of it this bird eats, the pinker its feathers are. And it eats with his head upside down. What is it?"

43% knows the answer to this question: "The lung transports which gas from the air into your bloodstream? "

And do you know the answer to this one? "Which musician released the LP 'At Folsom Prison' in 1968?"

39% knows the answer to this question: "What is the name for a temporary brain injury caused by a blow or jolt? "

And do you know the answer to this one? "The connecting points between bones are called what?"

81% knows the answer to this question: "In weather terms, what is the opposite of heat? "

And do you know the answer to this one? "Humpback, pilot, and blue are all types of what animal?"

42% knows the answer to this question: "What genus are dogs? "

And do you know the answer to this one? "A mammogram is an X-ray of which part of the body?"

85% knows the answer to this question: "Dustin Hoffman won the Best Actor Oscar for his role in which 1988 movie? "

And do you know the answer to this one? "On an electric hand mixer, what would a dough hooks attachment be used for? "

75% knows the answer to this question: "A book containing maps and charts is known as a what? "

And do you know the answer to this one? "Which first man to walk on the Moon died in 2012?"

73% knows the answer to this question: "How would you categorise the film The Texas Chainsaw Massacre? "

And do you know the answer to this one? "What hard-drinking Welshman was married five times, including two trips to the altar with Elizabeth Taylor?"

80% knows the answer to this question: "Grapes come in what? "

And do you know the answer to this one? "Iceberg, butterhead and romaine are all types of what?"

31% knows the answer to this question: "What is a man-made lake that stores water for future use known as? "

And do you know the answer to this one? "Which 1978 movie shot Olivia Newton-John to fame?"

46% knows the answer to this question: "Which famous guitarist died in 1970? "

And do you know the answer to this one? "The C in "The OC" is for "County." What conservative California county, home to Richard Nixon, gives us the O?"