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Calculate the number 7539

NUMBERMANIA: Calculate the number 7539 using numbers [5, 8, 2, 1, 65, 913] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 8

The first user who solved this task is Nílton Corrêa de Sousa.

#brainteasers #math #numbermania

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I Would Like To Havea Second Opinion

A patient has a sore throat and goes to a doctor to get treatment for it.
Doctor: Your tonsils gotta come out.
Patient: I wanna second opinion.
Doctor: Okay, you're ugly, too.

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London Zoo Opening

In 1828, London Zoological Gardens - Britain's first scientific zoo - opened in Regent's Park to the members of the Zoological Society of London.* The society was founded in Apr 1826 by Stamford Raffles and other scientists to research into animals kept in comparative freedom. Though Raffles became the society's first president, he died very shortly thereafter. His work was continued by the Marquess of Lansdowne, who obtained the Regent's Park land at a nominal rent from the Crown and supervised the construction of the original animal houses. The society received a Royal Charter from George IV on 27 Mar 1829. By 1831, the royal managerie had been presented by King William IV to the society. In 1847, the general public were first admitted as paying visitors to help provide funding for the zoo.«[Image: Visitors viewing Obaysch, photographed in 1852 at the London Zoo, the first hippopotamus seen in England since prehistoric times, and the first in Europe since Ancient Rome.]

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