55% knows the answer to this question: "What is the capital of Egypt? "

And do you know the answer to this one? "Which instrument has 88 keys?"

86% knows the answer to this question: "What is the capital of Mexico? "

And do you know the answer to this one? "Which gas is essential for breathing?"

35% knows the answer to this question: "What is the capital of Brazil? "

And do you know the answer to this one? "Which country invented pizza?"

31% knows the answer to this question: "Which is the largest planet in our solar system? "

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

50% knows the answer to this question: "What is the tallest mountain in the world? "

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

43% knows the answer to this question: "What is the currency of Japan? "

And do you know the answer to this one? "Who is the author of "1984"?"

77% knows the answer to this question: "Which bird is a symbol of peace? "

And do you know the answer to this one? "Who was the first man to walk on the moon?"

58% knows the answer to this question: "Don’t burn your ___. "

And do you know the answer to this one? "Look before you ___."

72% knows the answer to this question: "Make hay while the sun ___. "

And do you know the answer to this one? "Don’t put the cart before the ___."

57% knows the answer to this question: "Out of sight, out of ___. "

And do you know the answer to this one? "Strike while the iron is ___."

49% knows the answer to this question: "Every cloud has a silver ___. "

And do you know the answer to this one? "A bird in the hand is worth two in the ___."

61% knows the answer to this question: "A stitch in time saves ___. "

And do you know the answer to this one? "The early bird catches the ___."