Calculate the number 819
[7340] Calculate the number 819 - NUMBERMANIA: Calculate the number 819 using numbers [8, 5, 2, 8, 40, 649] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 2
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Calculate the number 819

NUMBERMANIA: Calculate the number 819 using numbers [8, 5, 2, 8, 40, 649] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
#brainteasers #math #numbermania
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Dentist

A guy and a girl meet at a bar. They get along so well that they decide to go to the girl's place.
A few drinks later, the guy takes off his shirt and then washes his hands.
He then takes of his trousers and washes his hands again.
The girl has been watching him and says, "You must be a dentist."
The guy, surprised, says "Yes! How did you figure that out?"
"Easy," she replied, "you keep washing your hands."
One thing led to another and they make love.
After they have done, the girl says, "You must be a good dentist."
The guy, now with a boosted ego says, "Sure, I'm a good dentist, How did you figure that out?"
"Didn't feel a thing!"     

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Jan Ernest Matzeliger

Born 15 Sep 1852; died 24 Aug 1889 at age 36.Dutch Guianian-American inventor who is best known for his shoe-lasting machine that revolutionished the shoe industry by replacing the hand work of attaching the sole to the upper of a shoe. He left his homeland of Dutch Guiana and sailed for America at age 19. He settled in Lynn, Massachussetts, by about age 25, where he became a shoe stitching machine operator. There he saw the tedious and slow process of finishing the shoe by hand, and resolved to develop a machine able to do that job more efficiently. Despite being so poor that obtaining materials was difficult, he made a wooden model. He obtained a patent for his invention, issued on 20 Mar 1883. With improvements, by 1885, he had a production model ready, able to produce shoes far more rapidly than hand workers. He died of tuberculosis at the early age of not yet 37.«
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