Calculate the number 2140
[1845] Calculate the number 2140 - NUMBERMANIA: Calculate the number 2140 using numbers [5, 7, 9, 1, 25, 177] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 41 - The first user who solved this task is Sanja Šabović
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Calculate the number 2140

NUMBERMANIA: Calculate the number 2140 using numbers [5, 7, 9, 1, 25, 177] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 41
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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The Smartest Dog Ever

As a butcher is shooing a dog from his shop, he sees $10 and a note in his mouth, reading: “10 lamb chops, please.”

Amazed, he takes the money, puts a bag of chops in the dog’s mouth, and quickly closes the shop.

He follows the dog and watches him wait for a green light, look both ways, and trot across the road to a bus stop. The dog checks the timetable and sits on the bench. When a bus arrives, he walks around to the front and looks at the number, then boards the bus. The butcher follows, dumbstruck.

As the bus travels out into the suburbs, the dog takes in the scenery.

After a while he stands on his back paws to push the “stop” button, then the butcher follows him off.

The dog runs up to a house and drops his bag on the stoop. He goes back down the path, takes a big run, and throws himself -Whap! – Against the door. He does this again and again. No answer. So he jumps on a wall, walks around the garden, beats his head against a window, jumps off, and waits at the front door. A big guy opens it and starts cursing and pummeling the dog.

The butcher runs up screams at the guy: “What the hell are you doing? This dog’s a genius!”

The owner responds, “Genius, no way! It’s the second time this week he’s forgotten his key!”

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Wireless telephone at White House

In 1919, President Wilson used a radio telephone set up on the south portico of the White House to direct the maneuvers of a dozen army airplanes flying over the Potomac river several miles away. His telephoned directions went direct to the flight commander in the air. The instrument was similar to those used by American aviators in France in the latter part of World War I. Col. C. C. Culver actively developed the equipment. He began the project in Aug 1910. No new invention was needed, only adaptation and adjustment of existing techniques. By Aug 1916, he was able to send a radio telegraph signal from a plane. Enlisting expert help from the telephone companies, by Oct 1917, voice messages could be send between a plane and the ground. The system was put into service for military wartime use.«
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