Calculate the number 3909
[4423] Calculate the number 3909 - NUMBERMANIA: Calculate the number 3909 using numbers [1, 3, 5, 6, 12, 273] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 20 - The first user who solved this task is Manguexa Wagle
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Calculate the number 3909

NUMBERMANIA: Calculate the number 3909 using numbers [1, 3, 5, 6, 12, 273] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 20
The first user who solved this task is Manguexa Wagle.
#brainteasers #math #numbermania
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One night, a lady stumbled int...

One night, a lady stumbled into the police station with a black eye. She claimed she heard a noise in her back yard and went to investigate. The next thing she knew, she was hit in the eye and knocked out cold.
An officer was sent to her house to investigate, and he returned 1-1/2 hours later with a black eye.
"Did you get hit by the same person?" his captain asked.
"No," he replied. "I stepped on the same rake."
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Spirit level

In 1666, Robert Hooke invented the spirit level, according to Sir David Brewster in the 1832 Edinburgh Encyclopedia. It was likely a variation on the spirit level, or “artificial horizon,” which he may have used while employed as City Surveyor of London after the Great Fire. The original concept was due to Melchisédech Thévenot, sometime before 2 Feb 1661, the date of his letter about it to Christiaan Huygens. In the 1670s, Hooke added a spirit level to his quadrant.«
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