BRAIN TEASERS

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Which is a winning combination of digits?

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: 26

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

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You have to stay in shape...

You have to stay in shape. My mother started walking five miles a day when she was 60.
She's 97 now and... we have no idea where she is.

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Hydrocephalus shunt

In 1956, a successful new silicone valve to drain "water on the brain" in cases of hydrocephalus, was reported by Dr. Eugene B. Spitz at the American Academy of Pediatrics meeting in New York City. John Holter, an engineer, invented the shunt using a silicone one-way, pressure-sealing valve which avoided the clogging problems experienced with the earlier metal valves previously tried by surgeons Spitz and Nulsen. The shunt drained fluid and controlled cranial pressure. In the 8 months since the first installation in Feb 1956, the Holter valve was implanted in 68 cases of which 57 were successful in decompressing the brain. Previous means had a success rate of only 16 out of 122 cases. The device has since saved many thousands of lives.«

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