Which number is missing?
[34] Which number is missing? - Which number is missing? - #brainteasers #math #riddles - Correct Answers: 105 - The first user who solved this task is Djordje Timotijevic
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Which number is missing?

Which number is missing?
Correct answers: 105
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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Tourists

A group of American tourists was being guided through an ancient castle in Europe.

"This place," the guide told them, "is 600 years old. Not a stone in it has been touched, nothing altered, nothing replaced in all those years."

"Wow," said one woman dryly, "they must have the same landlord I have."

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U.S. astronomy

In 1739, John Winthrop (12 Dec 1714-1779) of Cambridge, Mass., the first astronomer of note in the U.S. began sunspot observations and continued over the next two days. No observations were possible on 21 Apr due to cloudy weather. His observations exist as one-page reports in the University Archives of Harvard University, though they were never published. In 1761, he went on an expedition to St. John's, Newfoundland, to observe the transit of Venus across the sun on 6 Jun 1761, which measurements could be used to compute the distance between the sun and the Earth. He also observed the transit of 1769 from Cambridge.«
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