Replace the question mark with a number
[4000] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 169 - The first user who solved this task is H Tav
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 169
The first user who solved this task is H Tav.
#brainteasers #math #riddles
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Redneck Wants To Fight

There were some backwoods hillbillies living across the river from each other, who feuded constantly. John hated Clarence with a passion and never passed up a chance to throw rocks across the river at Clarence. This went on for years until one day the Corps of Engineers came to build a bridge across that river. John was elated; he told his wife that finally he was going to get the chance to cross over and whip Clarence.
He left the house and returned in a matter of minutes. His wife asked what was wrong, didn't he intend to go over the bridge and whip Clarence? He replied that he never had really seen Clarence up close and didn't realize his size until he started over the bridge and saw the sign: "CLEARANCE 8 FT 3 IN"
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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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