BRAIN TEASERS
The Most Difficult Tasks (page 74)

The Most Difficult Tasks (page 74)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 731 to 740.
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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
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#brainteasers #mastermind
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Calculate the number 768

NUMBERMANIA: Calculate the number 768 using numbers [2, 1, 9, 5, 42, 380] 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 a11a0 - 3cb47 = b8643 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math

Cactus in Jamaica

I saw a cactus in Jamaica, and got it confused with pokemon.
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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 2448

NUMBERMANIA: Calculate the number 2448 using numbers [1, 3, 8, 2, 24, 267] 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 692c0 + a4bbb = cb376b find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Find number abc

If 9ab5c + 1018b = 10a5b7 find number abc. Multiple solutions may exist.
Correct answers: 1
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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: 1
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If 56b5c - baba5 = 26a54 find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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Find number abc

If a0a1a + b99ca = 140ba4 find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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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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First animal blood transfusion

In 1666, the English physician, Samuel Pepys, made an record in his diary describing Richard Lower making the first documented blood transfusion. “Dr. Croone told me ... there was a pretty experiment of the blood of one dogg let out, till he died, into the body of another on one side, while all his own run out on the other side. The first died upon the place, and the other very well and likely to do well. This did give occasion to many pretty wishes, as of the blood of a Quaker to be let into an Archbishop and such like; but, as Dr. Croone says, may, if it takes, be of mighty use to man's health, for the amending of bad blood by borrowing from a better body.”Two days later, 16 Nov, Pepys noted meeting with Robert Hooke and hearingthe dog was “very well, and like to be so as ever, and doubts not its being found of great use to men.”
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