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# Calculate 876+876-876

If 123+741-900=2196 and 900+144-876=6569 then 876+876-876=?
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles

### Childhood Sweethearts

An elderly couple who were childhood sweethearts had married & settled down in their old neighborhood.
To celebrate their 50th wedding anniversary they walk down to their old school. There, they hold hands as they find the desk they shared & where he had carved "I love you, Sally".
On their way back home, a bag of money falls out of an armoured car practically at their feet. She quickly picks it up, & they don't know what to do with it so they take it home. There, she counts the money, & its fifty-thousand dollars.
The husband says: "We've got to give it back".
She says, "Finders keepers" & puts the money back in the bag & hides it up in their attic.
The next day, two policemen are going from door-to-door in the neighbourhood looking for the money show up at their home.
One knocks on the door & says: "Pardon me, but did either of you find any money that fell out of an armoured car yesterday?"
She says: "No"..
The husband says: "She's lying. She hid it up in the attic."
She says: "Don't believe him, he's getting senile."

But the policemen sit the man down & begin to question him.
One says: "Tell us the story from the beginning."
The old man says: "Well, when Sally & I were walking home from school yesterday ..."
At this, the policeman looks at his partner & says: "We're outta here ..."

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### Telephone switchboard

In 1882, a telephone switchboard was issued a U.S. patent to Leroy Firman of Chicago, Illinois (No. 252,576), which was assigned to the Western Electric Manufacturing Co. also of Chicago. With his invention of a “multiple switchboard for telephone exchanges,”Firman addressed the problem of increasing numbers of subscribers. Previously, single switchboards, each with an attendant, served their group of individual lines. A large exchange was thus divided up into a number of internal exchange switchboards which were worked together as necessary, with trunk lines between the boards. Firman devised an arrangement to handle an exchange of a thousand or more subscribers with line status information exchanged between switchmen.
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