MATH PUZZLE: Can you replace...
[5349] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 60 - The first user who solved this task is Alfa Omega
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 60
The first user who solved this task is Alfa Omega.
#brainteasers #math #riddles
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Saving Life

A college physics professor was explaining a particularly complicated concept to his class when a pre-med student interrupted him.
"Why do we have to learn this stuff?" The young man blurted out.
"To save lives," the professor responded before continuing the lecture.
A few minutes later the student spoke up again. "So how does physics save lives?"
The professor stared at the student for a long time. "Physics saves lives," he said, "because it keeps the idiots out of medical school."

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Grass catcher

In 1890, black American inventor Daniel Johnson received a patent for "Grass Receivers for Lawn Mowers" (U.S. No. 429,629). This was an improvement on the inventor's own earlier patent application. It consists of a means for suspending the receiver from the mower-handle and enabling the weight of the receiver to be equally distributed. The side of the receiver is covered with woven wire netting. For the purpose of dumping the contents of the receiver, a sliding bottom is provided, operated with a foot stirrup. The patent application was signed by Daniel Johnson making his X mark with two witnesses adding their signatures.
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