Replace the question mark with a number
[3384] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 41 - The first user who solved this task is Djordje Timotijevic
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 41
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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Mail

A man was in his front yard mowing grass when his neighbor came out of the house and went straight to the mail box, opened it, then slammed it shut, and stormed back in the house.

A little later they came out again went to the mail box and again opened it, then slammed it shut again.

Angrily, back into the house they went.

As the man was getting ready to edge the lawn, the neighbor came out again, marched to the mail box, opened it and then slammed it closed harder than ever. Puzzled by his neighbors actions the man asked, "Is something wrong?"

To which the neighbor (who was not very computer savvy) replied, "There certainly is! My stupid computer keeps giving me a message saying, "YOU'VE GOT MAIL!"

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Gerard Kitchen O'Neill

Died 27 Apr 1992 at age 65 (born 6 Feb 1927).Gerard Kitchen O'Neill was an American physicist who invented the colliding-beam storage ring which increased the energy output of particle accelerators by utilizing beams of particles moving through a ring-shaped chamber in opposite directions. He constructed two storage rings at Stanford in 1959, and the technique soon was adopted for numerous high-energy installations. As a leading advocate of space colonization, he wrote in his book The High Frontier (1978), that space colonies could be the ultimate solution to such terrestrial problems as pollution, overpopulation, and the energy shortage. He designed a 1-km long sealed cylindrical space station to be built primarily of processed lunar materials and using solar energy. It would be capable of sustaining a human colony indefinitely in space between the Earth and the Moon.
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