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Question 1 of 10

In about 1730, both English mathematician John Hadley and American inventor Thomas Godfrey invented something sailors use to measure angular elevations of celestial bodies. What?

Question 2 of 10

What light bulb inventor proposed to his second wife, Mina Miller, via Morse code, which he tapped out on her hand?

Question 3 of 10

A shoehorn is a first-class one, a diving-board is a second-class one, and a stapler is a third-class one. What simple machine is this?

Question 4 of 10

New England servants used to refuse work if it meant eating too much heath hen. Now it's extinct. To what bird was it most closely related?

Question 5 of 10

What inventor had five dots tattooed onto his left forearm, and liked to sleep on the floor of a closet at his Menlo Park laboratory?

Question 6 of 10

What is the speed of light?

Question 7 of 10

The nose of the shinkansen was redesigned after the beak of a kingfisher. What is the shinkansen?

Question 8 of 10

After physics, what study did Isaac Newton take up until he published "Principia Mathematica"?

Question 9 of 10

How many major time zones does the earth have?

Question 10 of 10

What is the name of the ancient ocean that surrounded the Pangea land mass?

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Average Score: 7

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Do you know the answers?

Find out by playing this quiz!

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Which decade do you love musically?

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Who sang these songs?

Question 5 is impossible

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General Knowledge Quizzes

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We wonder what you will score

Average Score: 5

30% knows the answer to this question: " "
General Knowledge Quiz

And..? Did you know it all?

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Trivia Quiz with a Mix of Questions

No one is able to score higher than a 6

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Tough General Knowledge Quiz

We hope this one isn't a struggle for you

Average Score: 5

53% knows the answer to this question: " "
His score is unbeatable by anyone!

Impossible Knowledge Quiz

Average Score: 8

23% knows the answer to this question: " "
Sudden Death

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

Average Score: 7

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Math Quizzes

Math Quiz

We hope you're smart enough for these questions

Average Score: 8

70% 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

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Math Quiz

Only those who are good with numbers stand a chance!

Average Score: 10

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Mathematics Quiz

Nobody is able to score a perfect 10

Average Score: 8

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Math Quiz

Only those who are good with numbers stand a change!

Average Score: 8

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Math Quiz

Only those who are good with numbers stand a change!

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