BRAIN TEASERS
Math (page 327)

Math (page 327)

These are fun math riddles. All of these tricky riddles are based on real math concepts and can be solved with purely math and logic. These are the tasks listed 3261 to 3270.
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Decrypt divide and determine the value of the number ABCD

Decrypt divide and determine the value of the number ABCD
Correct answers: 31
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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What number should replace the X to the magic square?

What number should replace the X to the magic square? Author: Nebojsa Jevtovic
Correct answers: 60
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #riddles #magicsquare
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Decrypt multiplication and determine the value of the number ABA

Decrypt multiplication and determine the value of the number ABA
Correct answers: 50
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math

Upgraded bathroom

A guy wakes up with a massive hangover and stumbles into the kitchen, where he finds his wife.

“Hey, honey, did you upgrade the bathroom?” he asks.

“Why do you ask?” she replies, curious.

“Well, I opened the bathroom door, the light turned on by itself, and a cool breeze blew right into my face! It was amazing!”

His wife glares at him and says, “So you’re the idiot who pissed in the fridge last night!”

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Calculate the number 4460

NUMBERMANIA: Calculate the number 4460 using numbers [1, 1, 4, 7, 63, 804] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 33
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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Decrypt multiplication and determine the value of the number ABCD

Decrypt multiplication and determine the value of the number ABCD
Correct answers: 33
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math
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GUESS THE NUMBER: When you increase this four-digit number four times you got the same number in reverse order

GUESS THE NUMBER: When you increase this four-digit number four times you got the same number in reverse order
Correct answers: 71
The first user who solved this task is Sanja Šabović.
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#brainteasers #math
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Calculate the number 1074

NUMBERMANIA: Calculate the number 1074 using numbers [4, 4, 7, 4, 21, 995] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 30
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #numbermania
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What is the next number in the sequence?

What is the next number in the sequence (283, 4813, 9616, 32422, 9613, ...)?
Correct answers: 86
The first user who solved this task is Slobodan Strelac.
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#brainteasers #math #riddles
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Find the biggest number ABCDEFG

Find the biggest number ABCDEFG. It is necessary to replace letters with digits so that the sum of the sides of a triangle is always the same. Each of the digits may be used only once.
Correct answers: 27
The first user who solved this task is Slobodan Strelac.
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#brainteasers #math
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Calculate the number 5225

NUMBERMANIA: Calculate the number 5225 using numbers [9, 7, 1, 8, 18, 759] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 29
The first user who solved this task is Sanja Šabović.
CHECK ANSWER
#brainteasers #math #numbermania
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Walter Noddack

Born 17 Aug 1893; died 7 Dec 1960 at age 67.Walter Karl Friedrich Noddack was a German chemist who discovered the element rhenium (Jun 1925) in collaboration with his wife Ida Tacke. In 1922, he began a long search for undiscovered elements. After three years, the careful fractionation of certain ores yielded element 75, a rare heavy metallic element that resembles manganese. Named rhenium after the Rhine River, it was the last stable element to be discovered. Noddack is also remembered for arguing for a concept he called allgegenwartskonzentration or, literally, omnipresent concentration. This idea, reminiscent of Greek philosopher Anaxagoras, assumed that every mineral actually contained every element. The reason they could not all be detected was they existed in too small quantities.
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