What is the missing number?
[5000] What is the missing number? - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 72 - The first user who solved this task is Djordje Timotijevic
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What is the missing number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 72
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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The Blind Man Is Here


A Nun was taking a shower one day and she heard the door bell ring, she yelled "Who is it?"
And the person ringing the door bell yelled, "I'm the blind man."
So the Nun got out of the shower and wrapped her hair in a towel, she didn't bother putting a towel around herself because the person behind the door was blind.
She opened the door and said, "What do you want?", and the man said, "I'm here to check your blinds."
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Joseph Black

Died 6 Dec 1799 at age 71 (born 16 Apr 1728). Scottish chemist and physicist who experimented with "fixed air" (carbon dioxide), discovered bicarbonates and identified latent heat. He lectured in chemistry, anatomy at the University of Glasgow, while also a physician. From heated magnesia alba (magnesium carbonate), Black collected a gas, carbon dioxide, different from common air. He published Experiments Upon Magnesia Alba, Quicklime, and Some Other Alcaline Substances (1756). Carbon dioxide was also released by fermentation, respiration, and burning charcoal so he assumed it was in the atmosphere. He also observed that ice melts without change of temperature, due to heat that becomes "hidden" - latent heat - and determined "specific heat" for heated of materials.[DSB gives date of death 6 Dec 1799. EB gives 10 Nov 1799.]
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