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: 28

The first user who solved this task is Nílton Corrêa De Sousa.

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She criticized my apartment...

So I knocked her flat

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Daniel Hale Williams

Born 18 Jan 1858; died 4 Aug 1931 at age 73.American physician remembered as the first black American to suture the pericardium (the fluid sac surrounding the heart muscle). On 9 Jul 1893, he operated on a 24-yr-old stabbing victim and sutured the wound to the pericardium, but left the heart muscle itself alone, allowing a small (1/10" long) nick to heal on its own. The patient recovered and lived for at least 20 years afterward. (A similar procedure was performed earlier by H.C. Dalton on 6 Sep 1891. The first surgery on heart muscle was done on 10 Sep 1896, by Ludwig Rehn who sutured a myocardial laceration). Williams helped establish the Provident Hospital and Medical Center in Chicago (1891), the oldest free-standing black owned hospital in the U.S.«

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