Which number should replace the question mark?
[206] Which number should replace the question mark? - FUNNY MATH: Which number should replace the question mark? - #brainteasers #math #riddles - Correct Answers: 27 - The first user who solved this task is Slobodan Strelac
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Which number should replace the question mark?

FUNNY MATH: Which number should replace the question mark?
Correct answers: 27
The first user who solved this task is Slobodan Strelac.
#brainteasers #math #riddles
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You've all heard of the Air F...

You've all heard of the Air Force's ultra-high-security, super-secret base in Nevada, known simply as "Area 51"?
Well, late one afternoon, the Air Force folks out at Area 51 were very surprised to see a Cessna landing at their "secret" base. They immediately impounded the aircraft and hauled the pilot into an interrogation room.
The pilot's story was that he took off from Las Vegas, got lost, and spotted the Base just as he was about to run out of fuel. The Air Force started a full FBI background check on the pilot and held him overnight during the investigation.
By the next day, they were finally convinced that the pilot really was lost and wasn't a spy. They gassed up his airplane, gave him a terrifying "you-did-not-see-a-base" briefing, complete with threats of spending the rest of his life in prison, told him Las Vegas was that-a-way on such-and-such a heading, and sent him on his way.
The next day, to the total disbelief of the Air Force, the same Cessna showed up again. Once again, the MP's surrounded the plane ... only this time there were two people in the plane.
The same pilot jumped out and said, "Do anything you want to me, but my wife is in the plane and you have to tell her where I was last night!"
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Karl George Christian von Staudt

Born 24 Jan 1798; died 1 Jun 1867 at age 69.German mathematician who developed the first complete theory of imaginary points, lines, and planes in projective geometry. His early work was on determining the orbit of a comet and, based on this work, he received his doctorate. He showed how to construct a regular inscribed polygon of 17 sides using only compasses. He turned to projective geometry and Bernoulli numbers (discovered by Jacob Bernoulli). An important work on projective geometry, Geometrie der Lage was published in 1847. It was the first work to completely free projective geometry from any metrical basis. He also gave a geometric solution to quadratic equations.
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