BRAIN TEASERS
The Most Difficult Tasks (page 276)

The Most Difficult Tasks (page 276)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 2751 to 2760.
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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: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If 5a0c2 - ab335 = 6b5b find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Find number abc

If a292c + 4ba7a = 79a01 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math

Two men, one American and an I...

Two men, one American and an Indian were sitting in a bar drinking shot after shot.
The Indian man said to the American, "You know my parents are forcing me to get married to this so called homely girl from a village whom I haven't even met once. We call this arranged marriage. I don't want to marry a woman whom I don't love... I told them that openly and now have a hell lot of family problems."
The American said, "Talking about love marriages... I'll tell you my story. I married a widow whom I deeply loved and dated for 3 years. After a couple of years, my father fell in love with my step-daughter and so my father became my son-in-law and I became my father's father-in-law. My daughter is my mother and my wife my grandmother.
More problems occurred when I had a son. My son is my father's brother and so he is my uncle. Situations turned worse when my father had a son. Now my father's son i.e. my brother is my grandson. Ultimately, I have become my own grand father and I am my own grandson. And you say you have family problems?"
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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: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If 6b2a4 + 177bc = ac0c7 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Find number abc

If cb6c6 + bac99 = 458c5 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Find number abc

If aac11 + 50bc4 = 7b195 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is NĂ­lton CorrĂȘa de Sousa.
CHECK ANSWER
#brainteasers #math
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Find number abc

If 490ac + a408b = bbcb44 find number abc. Multiple solutions may exist.
Correct answers: 20
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: 20
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: 20
The first user who solved this task is Nasrin 24 T.
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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Record speed

In 1967, the X-15 rocket plane achieved a world record speed of Mach 6.7, which is 4,520 mph or over a mile per second, with U.S. Air Force pilot Pete Knight. It reached an altitude of 192,100 feet (58,552 m). Its internal structure of titanium was covered with a skin of Inconel X, a chrome-nickel alloy. To save fuel, the X-15 was air launched from a B-52 aircraft at about 45,000 ft. Test flights between 8 Jun 1959 and 24 Oct 1968 provided data on hypersonic air flow, aerodynamic heating, control and stability at hypersonic speeds and piloting techniques for reentry used in the development of the Mercury, Gemini, and Apollo spaceflight programs. The X-15 reached 354,200 feet (67 miles) on 22 Aug 1963.«[Image: NASA artist's conception of the flight.]
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