Replace the question mark with a number
[3215] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 451 - The first user who solved this task is Sanja Šabović
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 451
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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Coffee Maker

The newlywed Blonde went to the store to ask how to operate the new coffeemaker received as a wedding gift. The salesman carefully explained how everything worked; how to plug it in, set the timer, go to bed, and upon rising, the coffee is ready.

A few weeks later the goober was back in the store and the salesman asked her how she liked the coffee maker.

"Wonderful!" she replied, "But... it's just awfully inconvenient to have to go to bed every time I want to make a pot of coffee."

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Martin Gardner

Born 21 Oct 1914; died 22 May 2010 at age 95. American science writer who, for 25 years,wrote the highly popular “Mathematical Games” column for Scientific American. Though not an academic, nor having ever formally studied maths or science, he wrote widely and prolifically on both subjects, in such popular books as The Ambidextrous Universe and The Relativity Explosion. Since childhood, he was fascinated by magic, so one of his first books was Mathematics, Magic and Mystery (1956), about the maths of popular magic tricks. His interests grew wider and deeper. By age 42, he wrote his first column for Scientific American, and for many years thereafter popularized mathematics by highlighting puzzles that were elegantly understandable. He both inspired professionals and enchanted young readers to take an interest in mathematics.«
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