Replace the question mark with a number
[3298] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 222 - The first user who solved this task is Eugenio G. F. de Kereki
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 222
The first user who solved this task is Eugenio G. F. de Kereki.
#brainteasers #math #riddles
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A blonde was playing Trivial P...

A blonde was playing Trivial Pursuit one night.
It was her turn, she rolled the dice and landed on "Science & Nature".
Her question was, "If you are in a vacuum and someone calls your name, can you hear it?"
She thought for a time, and then asked, "Is it on or off?"
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Gas burner patent

In 1899, a gas burner was patented by Benjamin F. Jackson, a black American inventor (No. 622,482). His design improved the equal distribution of air under pressure to ensure more complete combusion of the fuel gas. He assigned the patent to Robert Hoe, Theodore Mead and Charles Carpenter of New York City. The previous year, he took out patents on a "Heating Apparatus" and a "Matrix Drying Apparatus."[Image: gas burner vertical section and plan views]
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