49% knows the answer to this question: "What is the name of the digital music service started by Apple in 2001? "

And do you know the answer to this one? "Which company released the first HD DVD player?"

40% knows the answer to this question: "Physician, ... thyself "

And do you know the answer to this one? "Less is …"

33% knows the answer to this question: "Who sang the famous song Catch Us If You Can (1965)? "

And do you know the answer to this one? "How big was the brain of a 4000-pound Stegosaurus?"

69% knows the answer to this question: "What element is a diamond composed of? "

And do you know the answer to this one? "Which of these songs is in Mary Poppins?"

75% knows the answer to this question: "In the Dr. Seuss story, what did the Grinch try to steal? "

And do you know the answer to this one? "What would you call a large rodent that builds dams and dens in the water?"

58% knows the answer to this question: "Why is French the national language of Africa's Ivory Coast? "

And do you know the answer to this one? "What popular blog features street portraits and interviews on the streets of New York City?"

47% knows the answer to this question: "Solve this equation for N: 100N = 10000? "

And do you know the answer to this one? "Who designed the gown worn by Jennifer Lopez at her 2004 wedding to Marc Anthony?"

35% knows the answer to this question: "Who were the begonia, dahlia, fuchsia, gardenia, magnolia and zinnia named for? "

And do you know the answer to this one? "Which two letters are used to indicate years that occurred before the birth of Jesus?"

50% knows the answer to this question: "Quesadillas are included in which cuisine? "

And do you know the answer to this one? "What does "Little Miss Muffet" eat?"

67% knows the answer to this question: "You can find the Wailing Wall at which location? "

And do you know the answer to this one? "Scotland is the birthplace of what ball and stick sport?"

58% knows the answer to this question: "From what perspective does a map shows what the earth looks like? "

And do you know the answer to this one? "The city of Cancun is located in which country?"

86% knows the answer to this question: "If ground beef is selling for $2.75 per pound, how much would a three-pound package cost? "

And do you know the answer to this one? "What is 24 + 4 + 22 + 4?"