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Find number abc

If 7a06b + b91c9 = 1c1a04 find number abc. Multiple solutions may exist.

Correct answers: 63

The first user who solved this task is Djordje Timotijevic.

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A cowboy rides into town on Fr...

A cowboy rides into town on Friday, stays three days and leaves on Friday how does he do it?
The horses name is Friday

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Singer's treadle sewing machine

In 1851, Isaac M. Singer of New York City was granted a patent for the first sewing machine with a rocking treadle. Although a sewing machine had already been patented, Singer's sewing machine was revolutionary, having a double treadle. With patent in hand, Isaac set up shop in Boston, Massachusetts and began to manufacture his invention. Even after huge settlements paid to Elias Howe, another sewing machine patent holder, Singer, through business innovations like installment buying, after-sale servicing and trade-in allowances, had the marketplace all sewn up.

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