BRAIN TEASERS
The Most Difficult Tasks (page 301)

The Most Difficult Tasks (page 301)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 3001 to 3010.
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Find number abc

If bbbcc - 6c7aa = 3ba8b find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Find the right 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: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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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: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind

New Hearing Aids

An elderly gentleman had serious hearing problems for a number of years.
He finally went to a doctor, and was fitted with excellent new hearing aids.
He returned a month later for a checkup, and the doctor said, “Your hearing is perfect! Your family must be really pleased that you can hear again.”

The gentleman replied, “Oh, I haven't told my family just yet. I still sit around quietly; but, now I listen to the conversations. I've changed my will three times already.

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Find number abc

If 8b73c - 777ca = 3baa find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math
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Find the right 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: 22
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If aac67 - 2b20c = b26a9 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
[link]

Find the right 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: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[link]

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: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[link]

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: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
[link]

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: 22
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #mastermind
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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.
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Leon M. Lederman

Born 15 Jul 1922. Leon Max Lederman is an American physicist who, along with Melvin Schwartz and Jack Steinberger, received the Nobel Prize for Physics in1988 for their joint research and discovery (1960-62) of a new subatomic particle, the muon neutrino. Neutrinos are subatomic particles having no detectable mass and no electric charge, which travel at the speed of light. The discovery of muon neutrinos, a new type of neutrino, was followed by discoveries by other scientists of a number of different “families” of subatomic particle. Together, they now form a standard model, a scheme that has been used to classify all known elementary particles. He was director of the Fermi National Accelerator Laboratory in Batavia, Ill. (1979-89).
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