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: 30

The first user who solved this task is Djordje Timotijevic.

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What's the OS of gamblers?

What's the OS of gamblers?
- Windows.

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Brain Teasers

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Bubble boy

In 1984, a 12-year-old Houston boy, known publicly only as “David,”died. He had spent nearly all his life in a sterile plastic bubble because he had no immunity to disease. He was born at Texas Children's Hospital, Houston, with a rare disorder called severe combined immune deficiency (SCID), David Vetter lacked T-cells. It was thought that transplanted marrow stem cells—precursors to blood cells—could evolve and become the patient's own T-cells. So, on 21 Oct 1983, he received a bone marrow transplant from his older sister. It was intended to stimulate his immune system. By New Year's Day, he was becoming ill. Sadly, despite cleansing treatment, an undetected virus was in the transferred cells. When his death was imminent, on 7 Feb 1984, he left his bubble, and had 15 days of freedom.«

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