BRAIN TEASERS
The Most Difficult Tasks (page 72)

The Most Difficult Tasks (page 72)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 711 to 720.
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Calculate the number 963

NUMBERMANIA: Calculate the number 963 using numbers [3, 8, 6, 8, 99, 136] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If cab78 - ba3b6 = b99cb find number abc. Multiple solutions may exist.
Correct answers: 1
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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: 1
CHECK ANSWER
#brainteasers #mastermind

New York Girl

A girl from New York and a girl from the west coast were seated side by side on an airplane.
The girl from New York, being friendly and all said, "So, where ya from?"
The west coast girl said, "From a place where they know better than to use a preposition at the end of a sentence."
The girl from New York, sat quietly for a few moments and then replied:
"So, where ya from.... bitch?"
Jokes of the day - Daily updated jokes. New jokes every day.
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Calculate the number 7299

NUMBERMANIA: Calculate the number 7299 using numbers [8, 3, 6, 6, 35, 645] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If ca903 + cab90 = b65093 find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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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: 1
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1030

NUMBERMANIA: Calculate the number 1030 using numbers [6, 9, 7, 7, 11, 169] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If a4cb7 + cb877 = 45a84 find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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Find number abc

If c88ca - 37332 = bb5bc find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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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: 1
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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Sir Nevill F. Mott

Born 30 Sep 1905; died 8 Aug 1996 at age 90. Nevill Francis Mott was an English physicist whoshared(with PhilipW. Anderson and John H. Van Vleck of the U.S.) the 1977 Nobel Prize for Physics for his independent researches on the magnetic and electrical properties of amorphous semiconductors. Whereas the electric properties of crystals are described by the Band Theory - which compares the conductivity of metals, semiconductors, and insulators - a famous exception is provided by nickel oxide. According to band theory, nickel oxide ought to be a metallic conductor but in reality is an insulator. Mott refined the theory to include electron-electron interaction and explained so-called Mott transitions, by which some metals become insulators as the electron density decreases by separating the atoms from each other in some convenient way.
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