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: 40

The first user who solved this task is Maja Nikolic.

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One man said to the other...

One man said to the other, "You know, there are really only three kinds of people in the world: those who can count, and those who can't.

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Ephraim Ball

Died 1 Jan 1872 at age 59 (born 12 Aug 1812).American inventor and manufacturer whose "Ball's Ohio Mower" (patented 1 Dec1857) was the first widely successful of the two-wheeled flexible or hinged bar mowers, which greatly influenced the change from single driving-wheel machines to those with double drivers. His first invention was a turn-top stove. In 1840 he established a foundry for making ploughs. The “Ball's Blue Plough” he invented sold well. In 1851, he joined with others to form a larger company with factories at Canton, Ohio. His “Ohio Mower” (1854), “World Mower and Reaper,” and “Buckeye Machine” (1858) sold extensively. Thereafter his “New American Harvester”" produced up to 10,000 of these machines annually (1865). Nevertheless, he died impoverished.«

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