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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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 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
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Calculate the number 841

NUMBERMANIA: Calculate the number 841 using numbers [2, 1, 1, 7, 54, 903] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania

My lesbian neighbors gave me a...

My lesbian neighbors gave me a Rolex for my birthday. It's nice, but I think they misunderstood me when I said, "I wanna watch."
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Find number abc

If 48bc2 - cc99a = babca find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math
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Calculate the number 4072

NUMBERMANIA: Calculate the number 4072 using numbers [9, 9, 5, 9, 80, 382] 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 23ba0 + 6cca4 = ba4b4 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 549

NUMBERMANIA: Calculate the number 549 using numbers [1, 1, 7, 9, 73, 461] 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 7b542 + 2a248 = bcc7ac find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
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Find number abc

If 7cb06 + 69ac0 = 1a29c6 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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Transatlantic hot-air balloon crossing

In 1987, British millionaire Richard Branson and Per Lindstrand became the first to cross the Atlantic by hot-air balloon, named Virgin Atlantic Flyer. They jumped into the sea as their craft went down off the Scottish coast. They travelled a distance of 2,900 miles from from Sugarloaf Mountain, Maine, in 33 hours to set a new record for hot air ballooning. At the time, the balloon was the largest ever flown having 2.3 million cubic feet of capacity. Three years later, they crossed the Pacific in another balloon from Japan to Arctic Canada, a distance of 6,700 miles, breaking all existing records with speeds of up to 245 miles per hour.
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