48% knows the answer to this question: "What percent of 40 gives you 20? "

And do you know the answer to this one? "In 1950 this song became a #1 hit for Patti Page, and in 1965 it became one of Tennessee's state songs. What is it?"

41% knows the answer to this question: "Otto von Bismarck was a statesman from which country? "

And do you know the answer to this one? "Which bishop was a good friend of Nelson Mandela and assisted him during his presidency?"

66% knows the answer to this question: "Who sang the famous song "You're So Vain" (1972)? "

And do you know the answer to this one? "Who sang the famous song "Blowing In The Wind" (1963)"

85% knows the answer to this question: "What did the Romans call the city now known as London? "

And do you know the answer to this one? "Where was singer Shakira born?"

38% knows the answer to this question: "The 2011 film "The Iron Lady" is a biography of which historical figure? "

And do you know the answer to this one? "What 2005 film is about a nerdy guy named Andy Stitzer?"

43% knows the answer to this question: "In ancient Rome, what value was X? "

And do you know the answer to this one? "Which "Twist" singer was born Ernest Evans?"

73% knows the answer to this question: "What is a benefit of strength training? "

And do you know the answer to this one? "Who sang the famous song "Another Brick In The Wall" (1980)?"

36% knows the answer to this question: "There are 230 boys and 186 girls in a school. How many more boys than girls are there? "

And do you know the answer to this one? "Who sang the famous song "I Never Loved A Man (The Way I Love You)" (1967)?"

82% knows the answer to this question: "From East Derry, New Hampshire, who was the first American to travel in space? "

And do you know the answer to this one? "Robin runs 5 miles every weekday, 8.5 miles on Saturday and 12.5 on Sunday. What's his weekly total?"

44% knows the answer to this question: "Which one of these following animals does NOT belong to the cat family? "

And do you know the answer to this one? "Who sang the famous song "Cloud Nine" (1968)?"

72% knows the answer to this question: "Which U.S. state was named for William Penn? "

And do you know the answer to this one? "A popular new computer was introduced in 1984 named for what kind of apple?"

77% knows the answer to this question: "In 1997, NASA's Pathfinder space probe lands on the surface of which planet? "

And do you know the answer to this one? "What was the name of the General who led the U.S. forces that were defeated by allied Native American tribes at the Battle of the Little Bighorn?"