BRAIN TEASERS
The Most Difficult Tasks (page 304)

The Most Difficult Tasks (page 304)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 3031 to 3040.
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Calculate the number 2811

NUMBERMANIA: Calculate the number 2811 using numbers [3, 1, 4, 3, 37, 896] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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Can you name the athletes by the picture?

Can you name the athletes by the picture?
Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #riddles #sport
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What can point in every dire...

What can point in every direction but can't reach the destination by itself.
Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
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#brainteasers

A sad-faced Doug walked into a...

A sad-faced Doug walked into a flower shop early one morning.
The clerk was ready to take his order for a funeral piece, based on the look on Doug's face, but soon realized his assumption was wrong as Doug asked for a basket of flowers sent to his wife for their anniversary.
"And what day will that be?" the clerk asked.
Glumly he replied, "Yesterday".
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Chess Knight Move

Find the title of novel, using the move of a chess knight. First letter is A. Length of words in solution: 4,8.
Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #wordpuzzles #chessknightmove
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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: 22
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #mastermind
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Guess the Band Name

Which musician band has an album with a cover as in the picture?
Correct answers: 22
The first user who solved this task is Thinh Ddh.
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#brainteasers #music #riddles
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Calculate the number 1576

NUMBERMANIA: Calculate the number 1576 using numbers [5, 7, 2, 1, 36, 221] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 22
The first user who solved this task is Thinh Ddh.
CHECK ANSWER
#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (4, 6, 9, 10, 12, 15, 30, 32, 35, 43, 82) 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: 22
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #magicsquare
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Can you name the athletes by the picture?

Can you name the athletes by the picture?
Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #riddles #sport
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Calculate the number 527

NUMBERMANIA: Calculate the number 527 using numbers [9, 1, 1, 3, 37, 426] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 22
The first user who solved this task is Djordje Timotijevic.
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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Stephen Smale

Born 15 Jul 1930. American mathematician who was awarded the Fields Medal in 1966 for his work in topology and dynamical systems. One of his studies (1961) was on the generalised Poincaré conjecture, a famous problem of 20th-century, which asserts that a simply connected closed 3-dimensional manifold is a 3-dimensional sphere. Smale proved a higher dimensional Poincaré conjecture for an n-dimensional manifold where n is at least 5. In other work, related to strange attractors, one of the early fractals to be studied known, he discovered strange attractors which lead to chaotic dynamical systems. (An attractor in classical mechanics is a geometrical way of describing the behaviour of a dynamical system.) His recent work has been on theoretical computer science.
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