Replace the question mark with a number
[2706] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 350 - The first user who solved this task is Roxana zavari
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 350
The first user who solved this task is Roxana zavari.
#brainteasers #math #riddles
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How Many Does It Take? - 1132, 1133, 1134

A sampling of the best lightbulb jokes

Q. How many Mormons does it take to change a lightbulb?
A. Seven. One to change the lightbulb, one to say the opening prayer, one to say the closing prayer, and four to bring green Jell-o salads and red punch.

Q. How many agnostics does it take to change a light bulb?
A. We can't know.

Q. How many motivational speakers does it take to change a light bulb?
A. One to do it, and every other one on earth to stand around saying that they did it first in the 80's.

Q. How many deists does it take to change a light bulb?
A. None. If the light bulb no longer interferes with the world, why bother interfering with the light bulb?

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First U.S. antifouling paint patent

In 1863, the first U.S. patent for an antifouling paint for ships' hulls was issued to J.G. Tarr and A.H. Wonson (No. 40515) for a copper oxide, tar and naptha mixture. They claimed that a ship's hull thus painted could have protection against growth of barnacle shells and seaweeds lasting "for a period of twelve months, while another vessel painted in the common manner and employed in the same trade became so foul in six weeks as to require scraping." They took out an anti-corrosion antifouling paint patent on 13 Jun 1865 (U.S. No.48221). Fouling of a ship's bottom was a serious problem because it increases drag and greatly reduces a ship's speed. A British antifouling paint patent was issued on 31 Aug 1625 to William Beale.«
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