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Calculate the number 539

NUMBERMANIA: Calculate the number 539 using numbers [2, 4, 5, 5, 90, 357] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 15

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

#brainteasers #math #numbermania

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Why are the blinds drawn...

As the lawyer slowly came out of the anesthesia after surgery, he said, "Why are all the blinds drawn, doctor?"

"There's a big fire across the street", the doctor replied. "We didn't want you to think the operation was a failure."

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U.S. H-bomb

In 1950, President Harry S. Truman announced a program to develop the American hydrogen bomb. "I have directed ... work on all forms of atomic weapons, including the so called hydrogen or superbomb. Like all other work in the field of atomic weapons, it is being and will be carried forward on a basis consistent with the overall objectives of our program for peace and security ... until a satisfactory plan for international control of atomic energy is achieved. We shall also continue to examine all those factors that affect our program for peace and this country, security." This response followed his earlier announcement, on 23 Sep 1949, that had shocked America, "We have evidence that within recent weeks an atomic explosion occurred in the USSR."

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