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Solve the magic square and find the product of numbers A,B,C,D,E

Correct answers: 52

The first user who solved this task is Slobodan Strelac.

#brainteasers #math #magicsquare

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Brian Regan: New Baby Greeting Cards

They have a section called, New Baby. I dont think you need the word new. Theyd have to clear up confusion. Do you have an Old Baby section? Cause my friends had a baby, and I let time get away from me, and hes 12.

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Black American invention

In 1894, Black American inventor Fredrick J. Loudin was issued a U.S. patent for a "Key Fastener" (No.512,308). The invention was a device designed to attach to the knob-shaft or door-handle above the key-hole and fasten the door key in place in the lock by engaging with the eyed-end of the key to keep it from being turned in the lock. As the patent described, this would prevent disengaging the key, as might otherwise be done by a burglar from the outside of the door with some suitable implement, inserted through the key-hole. Loudin's first patent was issued 12 Dec 1892 for a window "Fastener for the Meeting Rails of Sashes" that permitted the window to be locked either closed or partially opened (No. 510,432).

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