BRAIN TEASERS

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Find the right 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: 25

The first user who solved this task is Nasrin 24 T.

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Unique Species

What is unique about Humans?
Humans are the only creatures on earth that allow their children to come back home.

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Pons Comet

In 1801, French astronomer Jean-Louis Pons (24 Sep 1761 - 14 Oct 1831) discovers his first comet. In his lifetime he discovered or co-discovered up to 37 comets. Since 1789, when he got a post at the Observatory at Marseilles as concierge, Pons quickly learned how to make observations with the instruments. He had a remarkable ability to remember the star fields he observed and to recognize changes. He logged his first discovery of a comet on 11 July 1801, which he had to share with Messier who found it a day later. Interestingly, as Pons' made his first comet discovery, that comet was Messier's last. Almost once every year, thereafter until 1827 when he eyesight declined, Pons found a new comet. Jean-Louis Pons set the record for visual discoveries of comets by an individual.

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