BRAIN TEASERS
Monthly Archive - November 2019

Monthly Archive - November 2019

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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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: 26
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 2151

NUMBERMANIA: Calculate the number 2151 using numbers [3, 7, 2, 1, 58, 420] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Fazil Hashim.
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 (13, 14, 22, 30, 31, 39, 72, 73, 81, 86) 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: 12
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #math #magicsquare

Shipwrecked on an Island

Two men were shipwrecked near an island. When they landed ashore, one of them began screaming and yelling, "We're going to die! We're going to die! There's no food! No water! We're going to die!"The second man leaned calmly against a palm tree. When the first man saw how calm his friend was, he went crazy and shouted, "Don't you understand?! We're going to die!! "Undisturbed, the second man replied, "You don't understand, I make $100,000 a week. "Dumbfounded, the first man looked at him and asked, "What difference does that make?!? We're on an island with no food and no water! We're going to DIE!!! "The second man answered, "You just don't get it. I make $100,000 a week and I tithe ten percent on that $100,000 a week. Wherever I am, my pastor will be sure to find me!"
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Find number abc

If 6c533 - b33a0 = 44153 find number abc. Multiple solutions may exist.
Correct answers: 28
The first user who solved this task is Nílton Corrêa de Sousa.
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#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: 23
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 682

NUMBERMANIA: Calculate the number 682 using numbers [8, 2, 2, 4, 25, 300] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 8ab0c - cb715 = c288a find number abc. Multiple solutions may exist.
Correct answers: 21
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #math
[link]

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: 23
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 208

NUMBERMANIA: Calculate the number 208 using numbers [3, 2, 3, 6, 33, 221] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 17
The first user who solved this task is Nílton Corrêa de Sousa.
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 (6, 10, 15, 25, 29, 31, 34, 35, 38, 40, 49, 69) 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: 11
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #math #magicsquare
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Cocaine anaesthetic

In 1884, cocaine was first used as a local anaesthetic to immobilize a patient's eye for eye surgery by Carl Koller. His success initiated the modern era of local anesthesia, with cocaine also quickly adopted for nose and throat surgery and for dentistry. For Koller, a Czech-born American ophthalmologist, the clue for this use was when he noticed that cocaine had a numbing effect on the tongue. He made many experiments on animals before introducing its use on humans. Cocaine was isolated in 1859 and was synthesized in 1885. It was later found with high doses or repeated use, it caused erosion of the corneal epithelium in high doses and it was replaced by less toxic, synthetic local anesthetics such as tetracaine and proparacaine.«
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