Despite its effectiveness in controlling malarial mosquitoes, what controversial chemical vanished from use after Rachel Carson blamed it for killing birds and poisoning people in her 1962 book Silent Spring?
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Question 2 of 10
In 1897 Representative TI Record of Posen County, Indiana, introduced House Bill #246, which fixed the value of what number at 3.23?
Question 3 of 10
By what name is the bay lynx usually known?
Question 4 of 10
How can you tell a mammoth from a mastodon?
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Question 5 of 10
Before he designed the Saturn V that launched Apollo 11, he was a member of both the Nazi party and the SS, having used slave labor from the Dora concentration camp. Who?
Question 6 of 10
What was the Avtomat Kalashnikova model 1947 g.?
Question 7 of 10
Humphry Davy discovered this element in 1807 and renamed it twice, which is why the Brits spell it with an I and the Americans don't. What is it?
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Question 8 of 10
Nikola Tesla never patented his ideas, but after Tesla died, the Supreme Court invalidated Marconi's patents and gave Tesla credit for what invention?
Question 9 of 10
Eureka! King Heiro of Syracuse asked Archimedes to figure out if a gold crown was really made of gold. By tradition, what was he doing when he figured out how?
Question 10 of 10
Doctors call it aeroembolism. Some engineers call it caisson disease. What do we usually call it?
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Do you remember these songs?
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Who Sang These Songs?
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Got more than 5 right? Let us know below!
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prove us by naming all artists!
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Most people don't remember the artist of these famous 70s songs
10 famous songs
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Who Sang These Songs?
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79% knows the answer to this question:
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General Knowledge Quizzes
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Will you succeed?
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98% knows the answer to this question:
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Challenging Knowledge Quiz
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General Knowledge
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Official IQ Test
Impossible to Score a 6 or higher
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58% knows the answer to this question:
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Don't come crying if you failed!
General Knowledge Quiz
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Challenging Knowledge Quiz
This quiz is way too hard for you!
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91% knows the answer to this question:
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Math Quizzes
Mathematics Quiz
Try to stay on your feet!
Average Score: 9
64% knows the answer to this question:
"What is the total of 101 + 73 + 16?
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Unbeatable Math Quiz
You won't score higher than a 6
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33% knows the answer to this question:
"Doubling is the same as multiplying by which number?
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Math IQ Test
Do you know the answer?
Average Score: 8
87% knows the answer to this question:
"If it snows 1 inch per hour for 2 days, how many inches of snow is that?
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Mathematics Quiz
Nobody is able to score a perfect 10
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88% knows the answer to this question:
"How many in a pair?
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Math Quiz
We hope you're smart enough for these questions
Average Score: 8
60% knows the answer to this question:
"If you eat 23 sweets from a tub that contains 687 how many sweets do you have left?
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Math Quiz
We hope you can do better than a simple 5
Average Score: 9
60% knows the answer to this question:
"180+124+68 equals what number?
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General knowledge quiz
Extremely hard mixed knowledge quiz, how many did you answer correctly?
Try this Proverbs quiz and see if you can find the missing word!