BRAIN TEASERS
Monthly Archive - January 2021 (page 3)

Monthly Archive - January 2021 (page 3)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30.
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Calculate the number 5547

NUMBERMANIA: Calculate the number 5547 using numbers [7, 4, 2, 5, 95, 564] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Find number abc

If c9ac8 - 11288 = 2815b find number abc. Multiple solutions may exist.
Correct answers: 29
The first user who solved this task is Nasrin 24 T.
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#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: 32
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind

There was this guy at a bar, j...

There was this guy at a bar, just looking at his drink. He stays like that for half of an hour.
Then, this big trouble-making truck driver steps next to him, takes the drink from the guy, and just drinks it all down. The poor man starts crying. The truck driver says, "Come on man, I was just joking. Here, I'll buy you another drink. I just can't stand to see a man cry."
"No, it's not that. This day is the worst of my life. First, I fall asleep, and I go late to my office. My boss, outrageous, fires me. When I leave the building, to my car, I found out it was stolen. The police said that they can do nothing. I get a cab to return home, and when I leave it, I remember I left my wallet and credit cards there. The cab driver just drives away."
"I go home, and when I get there, I find my wife in bed with the gardener. I leave home, and come to this bar. And just when I was thinking about putting an end to my life, you show up and drink my poison."
Jokes of the day - Daily updated jokes. New jokes every day.
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Calculate the number 1504

NUMBERMANIA: Calculate the number 1504 using numbers [7, 4, 8, 8, 15, 309] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nasrin 24 T.
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 (1, 3, 6, 11, 14, 21, 23, 26, 28, 30, 33, 60, 67) 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: 14
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 612a6 - 11666 = abc80 find number abc. Multiple solutions may exist.
Correct answers: 26
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#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: 45
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1372

NUMBERMANIA: Calculate the number 1372 using numbers [8, 1, 6, 2, 90, 644] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 79bc0 + a18c1 = 121ab1 find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
[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: 32
The first user who solved this task is NĂ­lton CorrĂȘa de Sousa.
CHECK ANSWER
#brainteasers #mastermind
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Girolamo Cardano

Died 21 Sep 1576 at age 74 (born 24 Sep 1501). Italian physician, mathematician and astrologer who was the first to give a clinical description of typhus fever. His book, Ars magna ("Great Art," 1545) was one of the great achievements in the history of algebra, in which he published the solutions to the cubic and quartic equations. His mechanical inventions included the combination lock, the compass gimbal consisting of three concentric rings, and the universal joint to transmit rotary motion at various angles (as used in present-day vehicles). He contributed to hydrodynamics and held that perpetual motion is impossible, except in celestial bodies. Cardano published two encyclopedias of natural science, introduced the Cardan grille, a cryptographic tool (1550), and was a life-long believer as an astrologer. He died by suicide.«
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