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Find number abc

If 25aab - ccc22 = ca327 find number abc. Multiple solutions may exist.

Correct answers: 15

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Crazy people don't know they are crazy

Crazy people don't know they are crazy, I know i'm crazy therefore i'm not crazy. Isn't that crazy.

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Pull chain bulb socket

In 1896, the first U.S. patent for an electric light bulb socket featuring an on-and-off pull chain was issued to Harvey Hubbell of Bridgeport, Connecticut (No. 565,541). On 8 Nov 1904, he patented a separable electric plug (No. 774250) adapting an Edison screw socket to a flat prong style. His inventions are now familiar throughout North America. His manufacturing company, Harvey Hubbell Inc. still exists today.

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