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Extremely hard mixed knowledge quiz, how many did you answer correctly?

Question 1
What is online data storage known as?
Question 2
The theory that the simplest explanation is usually the best is Occam's what?
Question 3
Bruno Mars grew up in which US state?
Question 4
What is 3 5/7 - 2 1/7?
Question 5
Russia cut off supplies of what to Europe in 2009 following a dispute?
Question 6
Which of these can be used to drive an electrical generator?
Question 7
What is 93,790 rounded to the nearest 100?
Question 8
2853+1906+959 equals what number?
Question 9
2577+1722+867 equals what number?
Question 10
148x149รท148 equals what number?
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