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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 is the singer of these songs?

Please tell us if you know more than 6 songs

Average Score: 9

39% knows the answer to this question: "Who sang the famous song "Imagine" (1971) ? "
Who Sang These Songs?

Who is able to score higher than a 6?

Average Score: 7

84% knows the answer to this question: "Which trumpet-voiced legend warmed hearts with “What a Wonderful World” (1967)? "
Do you know the answers?

Find out by playing this quiz!

Average Score: 7

63% knows the answer to this question: "Who sang the famous song "Living Doll" (1986) "
Are you a music expert?

Who Sang These Songs?

Average Score: 7

29% knows the answer to this question: "Which legendary crooner made "Fly Me to the Moon" (1964) unforgettable? "
Who sang these songs from the 50s, 60s & 70s

Which decade do you love musically?

Average Score: 9

67% knows the answer to this question: "Who sang the song, "Jailhouse Rock" (1957)? "
Who sang these songs?

Question 5 is impossible

Average Score: 8

64% knows the answer to this question: "Who sang the famous song Yesterday (1965)? "

General Knowledge Quizzes

Brain-Teasing Trivia Questions

We wonder what you will score

Average Score: 5

32% knows the answer to this question: " "
General Knowledge Quiz

And..? Did you know it all?

Average Score: 5

93% knows the answer to this question: " "
Trivia Quiz with a Mix of Questions

No one is able to score higher than a 6

Average Score: 8

25% knows the answer to this question: " "
Tough General Knowledge Quiz

We hope this one isn't a struggle for you

Average Score: 5

70% knows the answer to this question: " "
His score is unbeatable by anyone!

Impossible Knowledge Quiz

Average Score: 8

90% knows the answer to this question: " "
Sudden Death

Only a genius will make it all the way to question 10

Average Score: 7

33% knows the answer to this question: " "

Math Quizzes

Math Quiz

We hope you're smart enough for these questions

Average Score: 8

33% 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

Can You Solve It Without a Calculator?

Average Score: 7

71% knows the answer to this question: "38x39÷38 equals what number? "
Math Quiz

Only those who are good with numbers stand a chance!

Average Score: 10

31% knows the answer to this question: "Which number is most commonly considered unlucky? "
Mathematics Quiz

Nobody is able to score a perfect 10

Average Score: 8

56% knows the answer to this question: "What is double 26? "
Math Quiz

Only those who are good with numbers stand a change!

Average Score: 8

25% knows the answer to this question: "What is the total of 25 + 53 + 32? "
Math Quiz

Only those who are good with numbers stand a change!

Average Score: 8

95% knows the answer to this question: "How many feet long is a 100-yard football field? "