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Try not to cry when you do this impossible Science quiz!

Question 1 of 10

In 1962, Yukio Horie invented the first practical fiber-tip pen to accommodate which country's system of writing?

Question 2 of 10

As cities get crowded with phones, they can shoehorn in new overlay area codes. The first one, in 1992, was 917. Where?

Question 3 of 10

Most large freshwater lakes are in the rift valleys between tectonic plates. Which one is in the Great Rift Valley?

Question 4 of 10

Superconductors lose their electrical resistance. How do you get them to do this?

Question 5 of 10

How many sides does a dodecagon have?

Question 6 of 10

Named for a North African coast, what now extinct sub-species of lion was used in the Roman arena?

Question 7 of 10

When really big stars die, they blow up as a supernova, spreading debris all over the place. What does this debris become?

Question 8 of 10

What are organic compounds in which some of the bonding elements are delocalized?

Question 9 of 10

What percentage of acetic acid is legally allowed in vinegar?

Question 10 of 10

What Central American bird (and national symbol) has a tail so long that the only safe way it can fly off a branch is by jumping backward first?

Who Sang Quizzes

Who Played These Legendary Songs?

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Average Score: 8

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Who sang these songs?

Music Quiz

Average Score: 7

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Who Sang These Songs?

Who is able to score a 6 or higher?

Average Score: 8

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Most people don't remember the artist of these famous 70s songs

10 famous songs

Average Score: 9

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1990s: Which Artists Are We Looking For?

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Average Score: 5

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Impossible Music Quiz

Nobody gets more than 5 right

Average Score: 6

36% knows the answer to this question: "Who delivered "Help Me, Rhonda" (1965)? "

General Knowledge Quizzes

Difficult Knowledge Test

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Average Score: 6

87% knows the answer to this question: " "
Impossible Intelligence Test

Can you beat her perfect score?

Average Score: 5

67% knows the answer to this question: " "
Challenge Your Brain

By answering these 10 trivia questions

Average Score: 5

65% knows the answer to this question: " "
Do you know which fast food brand this is?

Name your favorite!

Average Score: 6

67% knows the answer to this question: " "
Hard Mixed Trivia

This hard quiz is too difficult for you!

Average Score: 5

48% knows the answer to this question: " "
Mixed Trivia Quiz

9+9=?? Share if you know!

Average Score: 7

66% knows the answer to this question: " "

Math Quizzes

Math Quiz

We challenge you to score an 8+

Average Score: 9

91% knows the answer to this question: "What is twenty times twenty? "
Math IQ Test

Do you know the answer?

Average Score: 8

22% knows the answer to this question: "If it snows 1 inch per hour for 2 days, how many inches of snow is that? "
Can you solve this?

go to Math Quiz

Average Score: 9

94% knows the answer to this question: "If a five day vacations costs 2500 dollars, how much does each day cost? "
Math Quiz

Are you real mathelete? Let us know below!

Average Score: 8

52% knows the answer to this question: "Which is the correct spelling? "
Test Your Math Knowledge

Absolutely nobody scores a solid 10

Average Score: 9

37% knows the answer to this question: "What number when added to 1661, gives 2723? "
Math Quiz

Can you solve this?

Average Score: 7

64% knows the answer to this question: "789+530+271 equals what number? "

Try this Proverbs quiz and see if you can find the missing word!
Extremely Hard History Quiz, most people score only 3 out of 10.
Everybody likes music, but how much do you know about it?