Replace the question mark with a number
[4069] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 129 - The first user who solved this task is Thinh Ddh
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 129
The first user who solved this task is Thinh Ddh.
#brainteasers #math #riddles
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The birds and the tee's?

A father spoke to his son, "It's time we had a little talk, my son. Soon, you will have urges and feelings you've never had before. Your heart will pound & your hands will sweat. You'll be preoccupied and won't be able to think of anything else."

He added, "But don't worry, it's perfectly normal... it's called golf."

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Singer's treadle sewing machine

In 1851, Isaac M. Singer of New York City was granted a patent for the first sewing machine with a rocking treadle. Although a sewing machine had already been patented, Singer's sewing machine was revolutionary, having a double treadle. With patent in hand, Isaac set up shop in Boston, Massachusetts and began to manufacture his invention. Even after huge settlements paid to Elias Howe, another sewing machine patent holder, Singer, through business innovations like installment buying, after-sale servicing and trade-in allowances, had the marketplace all sewn up.
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