Which number should replace the question mark?
[221] Which number should replace the question mark? - FUNNY MATH: Which number should replace the question mark? - #brainteasers #math #riddles - Correct Answers: 100 - The first user who solved this task is Slobodan Strelac
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Which number should replace the question mark?

FUNNY MATH: Which number should replace the question mark?
Correct answers: 100
The first user who solved this task is Slobodan Strelac.
#brainteasers #math #riddles
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I was sitting on the sofa last night watching TV...

I was sitting on the sofa last night watching TV, when my wife from the bedroom yelled, "Do you ever get pains on the chest like someone's got a voodoo doll and they're stabbing it?" I replied, "No."

Then she asked, "How about now?

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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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