BRAIN TEASERS

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Which is a winning combination of digits?

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: 72

The first user who solved this task is Sanja Šabović.

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Fried Egg or Boiled Egg

Little Johnny walked into his classroom with a fried egg on his head.
The teacher asked, "Why do you have a fried egg on your head?"
Little Johnny responded, "Because a hard boiled egg rolls off."

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First Zeppelin flight

In 1900, the first directed flight of a Zeppelin was made in Germany. LZ-1 was the first rigid airship to use a large internal metal frame containing multiple cells of hydrogen gas balloons. Its overall shape was a long uniform cylinder with rounded ends and 416 feet (120m) overall length. Named after its inventor, Ferdinand Graf von Zeppelin, it flew for about 18 minutes above the Bodensee (Lake Constance) near Friedrichshafen, Germany, powered by two Daimler internal combustion engines. The flight was cut short by technical difficulties. The next attempt was three months later, on 17 Oct. Its floating shed was used to assist launching by being aligned with the wind. Zeppelins built later made many commercial passenger flights.«[Inset: Ferdinand von Zeppelin]

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