36% knows the answer to this question: "Who turned “Ain’t No Sunshine” into a soulful hit in 1971? "

And do you know the answer to this one? "Who sang “Young at Heart” back in 1953?"

59% knows the answer to this question: "Which element is liquid at room temperature and toxic to humans? "

And do you know the answer to this one? "Which desert is the largest hot desert in the world?"

77% knows the answer to this question: "Which planet spins on its side and has faint rings? "

And do you know the answer to this one? "Which continent is home to the Andes mountain range?"

43% knows the answer to this question: "Which country is home to the ancient city of Timbuktu? "

And do you know the answer to this one? "What is the chemical symbol for the element lead?"

39% knows the answer to this question: "Who wrote the novel *The Catcher in the Rye*? "

And do you know the answer to this one? "What is the name of the hobbit played by Elijah Wood in *The Lord of the Rings* films, originally created by Tolkien?"

67% knows the answer to this question: "Which European city is famous for its canals and is often called the “Venice of the North”? "

And do you know the answer to this one? "What is the chemical symbol for iron?"

53% knows the answer to this question: "Which country invented paper? "

And do you know the answer to this one? "What is the most widely spoken language in the world by total number of speakers?"

38% knows the answer to this question: "What is the hardest rock type commonly found on Earth? "

And do you know the answer to this one? "Who wrote *The Odyssey*?"

95% knows the answer to this question: "What is the tallest mountain in the world? "

And do you know the answer to this one? "Which element has the atomic number 1?"

81% knows the answer to this question: "Which planet is known for its prominent ring system? "

And do you know the answer to this one? "What is the largest internal organ in the human body?"

47% knows the answer to this question: "Which country was formerly known as Persia? "

And do you know the answer to this one? "What is the chemical symbol for potassium?"

76% knows the answer to this question: "Which country has the longest coastline in the world? "

And do you know the answer to this one? "What is the square root of 144?"