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Find number abc

If 2cb1a - 1b09a = 6720 find number abc. Multiple solutions may exist.

Correct answers: 6

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Grass thief

After being turfed from his job, the grass thief was sod by police.
There was evidence that he was carrying a blade.
Also, he sent his wife a John Deere letter.
But before lawn he was caught.
The man said “I just can't run no mower.”

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Georg Christoph Lichtenberg

Died 24 Feb 1799 at age 56 (born 1 Jul 1742). German physicist and satirical writer, best known for his aphorisms and his ridicule of metaphysical and romantic excesses. At Göttingen University, Lichtenberg did research in a wide variety of fields, including geophysics, volcanology, meteorology, chemistry, astronomy, and mathematics. His most important were his investigations into physics. Notably, he constructed a huge electrophorus and, in the course of experimentations, discovered in 1777 the basic principle of modern xerographic copying; the images that he reproduced are still called "Lichtenberg figures." These are radial patterns formed when sharp, pointed conducting bodies at high voltage get near enough to insulators to discharge electrically, or seen on persons struck by lightning.

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