BRAIN TEASERS
Math

Math

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 1 to 10.
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Calculate the number 3558

NUMBERMANIA: Calculate the number 3558 using numbers [7, 8, 6, 6, 41, 482] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (9, 10, 15, 18, 19, 24, 42, 43, 48, 51) 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: 8
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #magicsquare
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Find number abc

If c30bb + ccaa7 = 1b9ac9 find number abc. Multiple solutions may exist.
Correct answers: 14
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math

When I was married, my wife us...

When I was married, my wife used to call me handsome. As a matter of fact, we are now divorced but she STILL calls me handsome.

Every time I have some money, she says, HANDSOME OVER.

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Calculate the number 683

NUMBERMANIA: Calculate the number 683 using numbers [4, 1, 3, 3, 29, 603] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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Find number abc

If 5a1c8 - 3a2bc = 1988c find number abc. Multiple solutions may exist.
Correct answers: 13
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Calculate the number 1391

NUMBERMANIA: Calculate the number 1391 using numbers [2, 6, 2, 9, 65, 203] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
The first user who solved this task is Djordje Timotijevic.
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#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, 2, 6, 17, 18, 22, 29, 30, 34, 57, 74, 81) 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: 7
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #magicsquare
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Find number abc

If 57bab - 1c591 = 4c4a9 find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Calculate the number 4380

NUMBERMANIA: Calculate the number 4380 using numbers [9, 6, 1, 4, 39, 746] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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Find number abc

If ac046 + cbac9 = 36a6b find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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C. B. Momsen

Died 25 May 1967 at age 70 (born 21 Jun 1896).Vice-Admiral Charles Bowers Momsen was an American inventor and navy officer whocreated the Momsen Lung, an underwater breathing device for escape from disabled submarines. It was an oblong rubber bag hung from the neck and strapped around the waist. A tube led from the bag to a mouthpiece to inhale oxygen and a return tube through a canister of soda lime inside the canister to remove exhaled carbon dioxide and then recycle the air. This provided air for a gradual ascent to avoid the “bends.” In Aug 1937 he became Officer in Charge of Experimental Diving at the NavyYard, Washington, D.C., where he developed new decompression tables and supported proposed use of a helium and oxygen mixture for deep diving. Momsen received the Distinguished Service Medal (1933). Today, the Momsen lung has been superced by other methods, such as the Stanke Hood or free ascent.«
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