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Hard Science Quiz

Question 1 of 10

What mathematical operation involves decreasing the minuend by the subtrahend?

Question 2 of 10

Offices got to junk their teletypes and telexes, thanks to what invention?

Question 3 of 10

A reflex movement in brain-dead patients causes them to cross their arms on their chest, as if they were mummies. What is this reflex's biblically inspired name?

Question 4 of 10

In which of the following activities would measuring volume be important?

Question 5 of 10

The Greek name for the Spanish artichoke gave us what name for another prickly plant, first encountered by Spanish explorers?

Question 6 of 10

In New England, they brace for nor'easters. What are they?

Question 7 of 10

Even though it has just two-thirds the conductivity of copper, which metal is often used to conduct electricity because it weighs a third as much and is much more ductile?

Question 8 of 10

Devised by Italian volcanologist Giuseppe Mercalli in 1902 and now largely replaced by the Richter scale, what does the Mercalli scale measure?

Question 9 of 10

How long does it take for the earth to spin around its axis and rotate completely?

Question 10 of 10

Which position from the sun is the Earth in our solar system?

Answer riddle/puzzle:

A River

Who Sang Quizzes

Who Sang These Songs?

Prove us wrong and leave your score in the comments

Average Score: 8

60% knows the answer to this question: "Who sang the song, "Johnny B. Goode" (1958)? "
Nobody can score a 6 or better in this love song quiz

Average Score: 7

85% knows the answer to this question: "Who sang "I Will Always Love You"? "
Who is the singer of these songs?

Please tell us if you know more than 6 songs

Average Score: 9

83% knows the answer to this question: "Who sang the famous song "Imagine" (1971) ? "
We dare you to take this quiz!

Who sang these songs?

Average Score: 0

85% knows the answer to this question: "Who sang the famous song "There Must Be An Angel" (1985) ? "
Who Sang These Songs?

Let us know your score

Average Score: 8

49% knows the answer to this question: "Who sang the song, "Stand By Me" (1961)? "
Who Sang These Songs?

Who is your favorite singer?

Average Score: 9

88% knows the answer to this question: "Who sang the famous song "Twist And Shout" (1963)? "

General Knowledge Quizzes

10 Knowledge Questions

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Average Score: 8

92% knows the answer to this question: " "
Can you make it to the end?

Sudden Death Knowledge Quiz

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Challenging Knowledge Quiz

Nobody nails this quiz

Average Score: 6

91% knows the answer to this question: " "
Sudden Death Quiz

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20% knows the answer to this question: " "
10 Challenging Questions

We are very sorry for these hard questions

Average Score: 4

57% knows the answer to this question: " "
15 General Knowledge Questions

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54% knows the answer to this question: " "

Math Quizzes

Math IQ Test

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Average Score: 8

45% knows the answer to this question: "If it snows 1 inch per hour for 2 days, how many inches of snow is that? "
Math Quiz

We hope you're smart enough for these questions

Average Score: 8

39% knows the answer to this question: "If you eat 23 sweets from a tub that contains 687 how many sweets do you have left? "
Math quiz for intelligent people

Average Score: 8

81% knows the answer to this question: "What is 15 + 27? "
Mathematics Quiz

Do you know the answer?

Average Score: 9

58% knows the answer to this question: "How many CD racks does it take to hold 300 CDs if each rack holds 75 CDs? "
Math Quiz Time!

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Average Score: 9

46% knows the answer to this question: "If you are 29 years old. How old will you be in 21 years time? "
SUDDEN DEATH QUIZ

Try to stay on your feet!

Average Score: 0

37% knows the answer to this question: "How fast do you need to travel to go 150 miles in 3 hours? "