MATH PUZZLE: Can you replace...
[2784] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 339 - The first user who solved this task is Donya Sayah30
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 339
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
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Two Sets of Tonsils?

A young man approached his family physician and said, "Doc, I'm afraid you'll have to remove my wife's tonsils one of these days."

"My good man," replied the doctor, "I removed them six years ago. Did you ever hear of a woman having two sets of tonsils?"

"No," the husband retorted, "but you've heard of a man having two wives, haven't you?"

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Photoelectric cell

In 1925, the photocell device was given its first U.S. public demonstration. It was shown by the Westinghouse Electric and Mfg Co at the Electrical Show at Grand Central Palace in New York. The photocell was used to count objects by acting as a sensor as each object passed through and interrupted a beam of light. The device was also utilized as a sensor to detect when a person approached a door, which opened as a circuit was activated.«
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