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Zorica Bera

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100. Небојша Јевтовић 42
101. Chindu Cho 40
102. Zorica Bera 40
103. tony m. 39
104. Michael Dela Torre Lascuña 37
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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.
NUMBERMANIA: Calculate the number 8586 using numbers [9, 1, 3, 9, 67, 884] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
If 63486 + caab6 = 13bc4a find number abc. Multiple solutions may exist.

Atomic power

In 1954, the world's first atomic power station began producing electricity in Obninsk, U.S.S.R., a small town 60 miles south of Moscow. The plant used a small, graphite moderated, water-cooled reactor, and could produce 5 megawatts. The reactor was used for both civilan power needs and also military purposes, such as research into the possibility of propelling submarines with nuclear power. It generated electricity until 1968, but continued in use for experiments and to warm the town's centrally distributed hot water supply. Final shutdown took place in 2002 for reason of being unprofitable.«[Image (click to enlarge ): Control room in the Obninsk nuclear power plant.]

The new baby

A young mother finds out she is pregnant again, and she tells the good news to anyone who will listen. One day when the woman and the boy are out shopping, a friend of the mother asks the little boy if he was excited about the new baby.

"Oh, yes!" the little tyke says. And having overheard some of his parents' private conversations, he adds, "And I know what we are going to name it, too. If it's a girl we're going to call it Mary, and if it's another boy we're going to call it Quits."

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