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Find number abc

If 80b4a - aa5ba = c4cb0 find number abc. Multiple solutions may exist.

Correct answers: 51

The first user who solved this task is Linda Tate Young.

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Under the kilt...

The American tourist stood staring at the highland sentry standing guard outside Edinburgh Castle.

After a few minutes she went up to the sentry and asked 'I've always wanted to find out what's worn under the kilt'.

The sentry replied: 'There is nothing worn, Ma'am, its all in perfect working order'.

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Robert Innes

Born 10 Nov 1861; died 13 Mar 1933 at age 71.Robert Thorburn Ayton Innes was a Scottish astronomer who discovered Proxima Centauri (1915), the closest star to earth after the Sun. Invited by David Gill to the Cape Observatory, South Africa (1894), he became a successful binary star observer with the 7-inch refractor (1628 discoveries). His most famous discovery, Proxima Centauri is a faint star near the binary star Alpha Centauri, which is so far south it is not visible from most of the northern hemisphere. He was also the first to see the Daylight Comet of 1910, though this comet was found independently by so many people in the Southern Hemisphere that no single "original'' discoverer could be named. Innes recorded it on 17 Jan 1910.

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