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Mathematical Puzzle: IF 6+4=...

Mathematical Puzzle: IF 6+4=210, 9+2=711 and 8+5=313 THEN 5+2=?

Correct answers: 103

The first user who solved this task is Nasrin 24 T.

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Jokes to celebrate Weed Appreciation Day

Today is National Weed Appreciation Day in USA! Appreciate your Weed!

Why did the dandelion become a motivational speaker?
Because it wanted to teach everyone how to turn their weeds into wishes!

Why was the clover invited to the garden party?
Because it was a popu-lawn guest!

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Pen

In 1809, the first patent was issued in the U.S. for a metallic writing pen was issued to Peregrine Williamson a jeweller of Baltimore, Maryland. The patent title occurs in summary lists in published books that exist after the fire that consumed all the records at the Patent Office on 15 Dec 1836. Williamson's pens were made of steel rolled from wire, a sort of steel quill that would never need cutting to sharpen the nib. His first attempt did not write well for want of flexibility but that was solved by adding two more slits parallel to the main one. He then had a product that eventually sold so well it kept him and a journeyman employed full-time in a profitable business. There are references to steel pens being used in Britain before this patent.«

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