Replace the question mark with a number
[2563] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 638 - The first user who solved this task is Donya Sayah30
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 638
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
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A little boy and his grandfath...

A little boy and his grandfather are raking leaves in the yard. Thelittle boy finds an earthworm trying to get back into its hole. He says,"Grandpa, I bet I can put that worm back in that hole." The grandfatherreplies, "I'll bet you five dollars you can't. It's too wiggly and limpto put back in that little hole."
The little boy runs into the house and comes back out with a can ofhairspray. He sprays the worm until it is straight and stiff as a board.Then he puts the worm back into the hole.
The grandfather hands the little boy five dollars, grabs the hairspray,and runs into the house. Thirty minutes later the grandfather comes backout and hands the little boy another five dollars. The little boy says,
"Grandpa, you already gave me five dollars."
The grandfather replies, "I know. That's from your grandma.
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Guglielmo Marconi

Born 25 Apr 1874; died 20 Jul 1937 at age 63. Marchese Guglielmo Marconi was an Italian electrical engineer and inventor who invented the wireless telegraph (1935) known today as radio. Nobel laureate (1909). In 1894, Marconi began experimenting on the “Hertzian Waves,” the radio waves Heinrich Hertz had first produced in his laboratory a few years earlier. Lacking support from the Italian Ministry of Posts and Telegraphs, Marconi turned to the British Post Office. Encouraging demonstrations in London and on Salisbury Plain followed. Marconi obtained the world's first patent for a system of wireless telegraphy, in 1897, and opened the world's first radio factory at Chelmsford, England in 1898. In 1900 he took out his famous patent No. 7777 for “tuned or syntonic telegraphy.”
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