Replace the question mark with a number
[3173] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 566 - 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: 566
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
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Try To Get Some Rest

A man had been driving all night and by morning was still far from his destination. He decided to stop at the next city he came to, and park somewhere quiet so he could get an hour or two of sleep. As luck would have it, the quiet place he chose happened to be on one of the city's major jogging routes. No sooner had he settled back to snooze when there came a knocking on his window. He looked out and saw a jogger running in place.
"Yes?"
"Excuse me, sir," the jogger said, "do you have the time?" The man looked at the car clock and answered, "8:15". The jogger said thanks and left. The man settled back again, and was just dozing off when there was another knock on the window and another jogger.
"Excuse me, sir, do you have the time?"
"8:25!"
The jogger said thanks and left. Now the man could see other joggers passing by and he knew it was only a matter of time before another one disturbed him. To avoid the problem, he got out a pen and paper and put a sign in his window saying, "I do not know the time!" Once again he settled back to sleep. He was just dozing off when there was another knock on the window.
"Sir, sir? It's 8:45!."
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Frederick Soddy

Born 2 Sep 1877; died 22 Sep 1956 at age 79. English chemist and physicist who received the Nobel Prize for Chemistry in 1921 for investigating radioactive substances. He suggested that different elements produced in different radioactive transformations were capable of occupying the same place on the Periodic Table, and on 18 Feb 1913 he named such species "isotopes" from Greek words meaning “same place.” He is credited, along with others, with the discovery of the element protactinium in 1917.
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