40% knows the answer to this question: "Which war ended with the Treaty of Versailles? "

And do you know the answer to this one? "Who was the first President of the United States?"

57% knows the answer to this question: "What is the chemical symbol for iron? "

And do you know the answer to this one? "Which sea creature has three hearts?"

52% knows the answer to this question: "What is the longest bone in the human body? "

And do you know the answer to this one? "What is the capital of Argentina?"

45% knows the answer to this question: "Which desert is the largest in the world by area? "

And do you know the answer to this one? "What is the main language spoken in Brazil?"

42% knows the answer to this question: "Which classic novel begins with the line “Call me Ishmael”? "

And do you know the answer to this one? "Which country has the most time zones?"

39% knows the answer to this question: "Which country is traditionally known as the origin of sushi? "

And do you know the answer to this one? "What type of pasta is shaped like little rice grains and often used in soups?"

49% knows the answer to this question: "Which organelle is known as the powerhouse of the cell? "

And do you know the answer to this one? "What is the chemical formula for table salt?"

72% knows the answer to this question: "Who sang “Let It Be” in 1970? "

And do you know the answer to this one? "Who delivered “Total Eclipse of the Heart” in 1983?"

73% knows the answer to this question: "Which scientist formulated the laws of planetary motion? "

And do you know the answer to this one? "What is the capital of Kazakhstan?"

38% knows the answer to this question: "Who was the first emperor of the Roman Empire? "

And do you know the answer to this one? "In what year did the Berlin Wall fall?"

71% knows the answer to this question: ".ru is the top-level domain name for which country? "

And do you know the answer to this one? "This baby feature's on which food brand's logo?"

89% knows the answer to this question: "279x271÷271 equals what number? "

And do you know the answer to this one? "What follows 0,1,1,2,3,5,8 in the Fibonacci sequence?"