BRAIN TEASERS

# 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.
The first user who solved this task is Djordje Timotijevic.
#brainteasers #mastermind

### Barbie

A man walks into the toy store to get a Barbie doll for his daughter. So he asks the assistant, as you would, "How much is Barbie?"
"Well," she says, "we have Barbie Goes to the Gym for \$19.95, Barbie Goes to the Ball for \$19.95, Barbie Goes Shopping for \$19.95, Barbie Goes to the Beach for \$19.95, Barbie Goes Nightclubbing for \$19.95, and Divorced Barbie for \$265.00."
"Hey, hang on," the guy asks, "why is Divorced Barbie \$265.00 when all the others are only \$19.95?"

"Yeah, well, it's like this ... Divorced Barbie comes with Ken's house, Ken's car, Ken's boat, Ken's furniture ..."

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## Brain Teasers

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### Max Planck

Born 23 Apr 1858; died 4 Oct 1947 at age 89. Max Karl Ernst Ludwig Planck was a German theoretical physicist who studied at Munich and Berlin, where he studied under Helmholtz, Clausius and Kirchhoff and subsequently joined the faculty. He became professor of theoretical physics (1889-1926). His work on the law of thermodynamics and the distribution of radiation from a black body led him to abandon classical Newtonian principles and introduce the quantum theory (1900), for which he was awarded the Nobel Prize for Physics in 1918. This assumes that energy is not infinitely subdivisible, but ultimately exists as discrete amounts he called quanta (Latin, “how much”). Further, the energy carried by a quantum depends in direct proportion to the frequency of its source radiation.
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