BRAIN TEASERS
The Most Difficult Tasks (page 157)

The Most Difficult Tasks (page 157)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1561 to 1570.
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Find number abc

If 99cb5 + a5ca9 = caa32a find number abc. Multiple solutions may exist.
Correct answers: 7
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#brainteasers #math
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Find number abc

If c10bb + 1baab = a00b6 find number abc. Multiple solutions may exist.
Correct answers: 7
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#brainteasers #math
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Find number abc

If c6275 + 5ba23 = 1ba29c find number abc. Multiple solutions may exist.
Correct answers: 7
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#brainteasers #math

Chuck Norris got shot. We are ...

Chuck Norris got shot. We are now in the hospital, where the bullet is in critical condition.
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Find number abc

If bb00c - 37948 = a70b8 find number abc. Multiple solutions may exist.
Correct answers: 7
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#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: 7
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#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: 7
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If c3b95 - bb70b = 7ba9a find number abc. Multiple solutions may exist.
Correct answers: 7
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#brainteasers #math
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Calculate the number 9703

NUMBERMANIA: Calculate the number 9703 using numbers [9, 7, 1, 4, 45, 953] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
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#brainteasers #math #numbermania
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Calculate the number 933

NUMBERMANIA: Calculate the number 933 using numbers [4, 2, 7, 5, 90, 491] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
The first user who solved this task is NĂ­lton CorrĂȘa de Sousa.
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#brainteasers #math #numbermania
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Calculate the number 4795

NUMBERMANIA: Calculate the number 4795 using numbers [6, 7, 7, 2, 82, 702] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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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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Edwin J. Houston

Born 9 Jul 1847; died 1 Mar 1914 at age 66.Edwin James Houston was an American electrical engineer who, together with Elihu Thomson (another Philadelphia high school teacher)experimented with electricity. Houston invented, patented in 1881 and manufactured arc street-lighting. He presented the first paper, Notes on Phenomena in Incandescent Lamps, to The American Institute of Electrical Engineers when it began in 1884 (AIEE - the predecessor society of the present IEEE, The Institute of Electrical and Electronics Engineers, Inc.). The merger of Thomson-Houston and Edison General Electric companies (1892) formed General Electric. In 1894 he joined with Arthur Kennelly (who resigned from Edison's laboratory) to form a consulting company.
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