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VAHID KHALILI

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last 3 solved tasks
If 703ab + 7177c = 14b15a find number abc. Multiple solutions may exist.
The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Look at the series (9458, 261440, 170, ...), determine the pattern, and find the value of the next number!

Johan Gottlieb Gahn

Died 8 Dec 1818 at age 73 (born 19 Aug 1745).Swedish mineralogist and crystallographer who was born in an iron-ming town, and followed mining as a career. At the copper mine in Falun, he improved smelting methods and the use of by-products. He discovered manganese (1774), and also selenium. Gahn assisted his friend Carl Wilhelm Scheele (discoverer of chlorine) in finding phosphoric acid in bones. His limited published work included essays on the balance and use of the blowpipe as a convenient analytical tool. During the American Revolutionary War, one of his companies supplied copper for sheathing ships. Gahnite, a dark green to brown or black mineral, (ZnAl2O4), also called zinc spinel was named after Gahn.

Soda Machine

One day a blonde went up to a soda machine, put in some money, and a soda came out. She got really excited and started to put more money into the machine. The more and more she did it, the more the soda came out.

After a while someone walked up to her and asked if they could please get a soda.

The blonde looked at them angrily and said: "Get out of my face, I'm winning!"

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