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What a winning combination?

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.

Correct answers: 18

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

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A Conundrum

If women do the same job for less money, why do companies hire men to do the same job for more money?

It's a puzzlement!

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Biosphere 2

In 1991, four men and four women entered the Biosphere 2, an airtight, self-contained structure in Oracle, Ariz., where they would live for two years. The 7,200,000-cu-ft sealed glass and space-frame structure contained 5 biomes, including a 900,000-gallon ocean, a rain forest, a desert, agricultural areas and a human habitat. It was built in the late 1980s with $150 million in funding by Texas oil magnate Edward Bass. Biosphere 2 was designed as replica of Earth's environment (Biosphere 1). During their stay, the crew experienced various problems. Limited agricultural productivity restricted their diet. Micro-organisms in the soil reduced oxygen levels in the atmosphere and added nitrous oxide. The crew emerged on 26 Sep 1993. Unfortunately, the problems with the project's results brought scientific disdain.«

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