BRAIN TEASERS
The Most Difficult Tasks (page 254)

The Most Difficult Tasks (page 254)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 2531 to 2540.
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Find number abc

If b8b81 - c87ca = ca8bc find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Find number abc

If 4c09c + 114a8 = b8bab find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (5, 14, 17, 20, 22, 23, 28, 42, 45, 50, 71) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A*B+C.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare

Volunteer fire department

A fire started on some grasslands near a farm. The county fire department was called to put out the fire. The fire was more than the county fire department could handle. Someone suggested that a nearby volunteer bunch be called. Despite some doubt that the volunteer outfit would be of any assistance, the call was made.

The volunteers arrived in a dilapidated old fire truck. They rumbled straight towards the fire, drove right into the middle of the flames and stopped! The firemen jumped off the truck and frantically started spraying water in all directions. Soon they had snuffed out the center of the fire, breaking the blaze into two easily-controlled parts.

Watching all this, the farmer was so impressed with the volunteer fire department's work and was so grateful that his farm had been spared, that right there on the spot he presented the volunteers with a check for $1,000. A local news reporter asked the volunteer fire captain what the department planned to do with the funds.

"That ought to be obvious," he responded, wiping ashes off his coat. "The first thing we're gonna do is get the brakes fixed on our fire truck!"

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Find the 7 letters word

Find the 7 letters word. Word may go in all 8 directions.
Correct answers: 18
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #wordpuzzles
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Can you name the athletes by the picture?

Can you name the athletes by the picture?
Correct answers: 18
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #riddles #sport
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Take a look at the picture of ...

Take a look at the picture of the movie scene and guess the name of the person whose face is not visible. Length of words in solution: 3,6
Correct answers: 18
The first user who solved this task is Fazil Hashim.
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#brainteasers #movie #film #cinemania
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Chess Knight Move

Find the title of movie, using the move of a chess knight. First letter is S. Length of words in solution: 6,9.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
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#brainteasers #wordpuzzles #chessknightmove
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MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (3, 4, 5, 9, 10, 11, 22, 23, 24) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A-B*C.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If bc17a - 6a575 = 255cb find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Find number abc

If aaba6 - 1bcc2 = b0b5a find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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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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