BRAIN TEASERS

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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.

Correct answers: 63

The first user who solved this task is Djordje Timotijevic.

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How do you get down off an elephant?

How do you get down off an elephant?
You don't, you get down off a goose.

Why are elephants always so broke?
They work for peanuts.

What do you call an elephant that doesn't matter?
Irrelephant.

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Maria Telkes

Died 2 Dec 1995 at age 94 (born 12 Dec 1900).Hungarian-American physical chemist who pioneered in the application of solar energy to water distillation and home heating. She immigrated to the U.S. in 1925, worked as a biophysicist (1926-37), and naturalized in 1937. As a civilian adviser to the U.S. Office of Scientific Research and Development during WW II, she worked out a solar heated water distillation system to make sea water potable. In the late 1940's, she designed a system of chemical storage of solar energy for the first solar-heated house, a project of MIT constructed t in Dover, Massachusetts. She developed a solar-powered stove, and in the 1970s, experimented with an air-conditioning system that stored cool night air for use during the heat of the next day.

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