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Vladimir Krnac

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last 3 solved tasks
If ac5a1 + b52c9 = 155b9c find number abc. Multiple solutions may exist.
Find the title of novel, using the move of a chess knight. First letter is L. Length of words in solution: 5,3.
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.

Frederick Fuller Russell

Born 17 Aug 1870; died 29 Dec 1960 at age 90.American scientist who developed the first successful U.S. typhoid fever vaccine. Russell earned his medical degree in 1893 and was commissed in 1898 as first lieutenant and assistant surgeon in the U.S. Army. In summer 1908, the U.S. Army Surgeon General sent him to Europe to study the experience of the British and German armies in anti-typhoid vaccination. In 1909, Major Russell prepared a laboratory the Army Medical Museum for manufacturing vaccine, and vaccinated volunteers, the first of whom came from the museum and the medical school. By the end of 1910, 10,841 volunteers had been vaccinated. This was made compulsory for military personnel the next year. The reduction in the incidence of the disease was dramatic.«

Represent Christmas

Three men die in a car accident Christmas Eve. They all find themselves at the pearly gates waiting to enter Heaven. On entering they must present something relating or associated with Christmas.
The first man searches his pocket, and finds some Mistletoe, so he is allowed in.
The second man presents a cracker, so he is also allowed in.
The third man pulls out a pair of stockings.
Confused at this last gesture, St. Peter asks, "How do these represent Christmas?"
"They're Carol's."
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