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: 32

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

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Caught Stealing Groceries

I saw a man stealing groceries the other day while on the shoulders of a couple of vampires.
He got charged with shoplifting on two counts.

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Antifouling paint patent

In 1625, the first patent for antifouling paint was issued in Britain to William Beale (No. 32/1625). He used a mixture of cement, copper compound, and powdered iron that was intended to impair marine growth of the boreworm on a ship's hull. The first U.S. patent for a paint against fouling by shells and weeds was issued on 3 Nov 1863 to James G. Tarr and Augustus H.Wonson of Gloucester, Mass. (3 Nov 1863 No. 40515) which used copper oxide powdered from ore in Stockholm tar, and naptha or benzine. The first patent under Japan's Patent Monopoly Act was for an antifouling paint, was issued 14 Aug 1885 to Zuisho Hotta for a formula combining lacquer, powdered iron, red lead, persimmon tannin, and other ingredients.«*

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