Calculate the number 572
[5273] Calculate the number 572 - NUMBERMANIA: Calculate the number 572 using numbers [1, 5, 5, 6, 77, 131] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 14 - The first user who solved this task is Djordje Timotijevic
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Calculate the number 572

NUMBERMANIA: Calculate the number 572 using numbers [1, 5, 5, 6, 77, 131] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #numbermania
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Two Drops

A lady went to the bar on a cruise ship, and ordered a Scotch, with two drops of water. The bartender gave her the drink, and she said, "I'm on this cruise to celebrate my 80th birthday, and it's today."
The bartender said, "Well, since it's your birthday, this one's on me."
As the lady finished her drink, a woman, to her right, said, "I'd like to buy you a drink, too." The lady said, "Thank you, how sweet of you. OK, then, Bartender, I want another Scotch, with two drops of water."
"Coming up," said the bartender.
As she finished that drink, a man, to her left, said, "I'd like to buy you a drink too." The lady said, "Thank you very much, my dear. Bartender, I'll have another Scotch, with two drops of water."
"Coming right up," the bartender said.
As he gave her the drink, this time, he said, "Ma'am, I'm dying of curiosity. Why the Scotch with only two drops of water?"
The old woman giggled, and replied, "Sonny, when you're my age, you've learned how to hold your liquor. Water, however, is a whole other issue."  

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Carl Koller

Died 21 Mar 1944 at age 86 (born 3 Dec 1857).Czech-born American ophthalmic surgeon whose introduction of cocaine as a surface anesthetic in eye surgery on 16 Sep 1884 inaugurated the modern era of local anesthesia. He was a colleague of Sigmund Freud, who in 1884 was interested in the use of cocaine to cure morphine addiction. Koller noticed cocaine had a numbing effect on the tongue and, after experimenting with animals, introduced it as a local anaesthetic in ophthalmology. It was also quickly adopted for nose and throat surgery and for dentistry. Cocaine was isolated in 1859 and was synthesized in 1885. It became evident that this agent produced erosion of the corneal epithelium in high doses or with repeated use. Later, less toxic, synthetic local anesthetics such as tetracaine and proparacaine were developed.
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