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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What is the next number in the series?

Look at the series (7645, 5764, 4576, ?), determine the pattern, and find the value of the next number!
Correct answers: 7
The first user who solved this task is Alfa Omega.
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#brainteasers #math #riddles
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Calculate the number 5924

NUMBERMANIA: Calculate the number 5924 using numbers [4, 9, 7, 1, 85, 671] 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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MATH PUZZLE: What is the mis...

MATH PUZZLE: What is the missing number?
Correct answers: 27
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles

Boy Scout on the plane

A doctor, a lawyer, a little boy scout and a pastor were out for a Sunday afternoon flight on a small private plane.

Suddenly, the plane developed engine trouble. In spite of the best efforts of the pilot, the plane started to go down.

Finally, the pilot grabbed a parachute, yelled to the passengers that they had better jump, and bailed out.

Unfortunately there were only three parachutes remaining.

The doctor grabbed one and said "I'm a doctor, I save lives, so I must live," and jumped out.

The lawyer then said "I'm the smartest man in the world, I deserve to live!" He grabbed a parachute and jumped, also.

The pastor looked at the little boy scout and said, "My son, I've lived a long and full life. You are young and have your whole life ahead of you. Take the last parachute and live in peace."

The little boy scout handed the parachute back to the pastor and said "Not to worry, Preacher. 'The smartest man in the world' just jumped out with my back pack."

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MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (2, 3, 7, 8, 12, 17, 54, 55, 64, 93) 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 Djordje Timotijevic.
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#brainteasers #math #magicsquare
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Find number abc

If 317a3 - 1b9b3 = 2bcab find number abc. Multiple solutions may exist.
Correct answers: 19
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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MATH PUZZLE: What's the miss...

MATH PUZZLE: What's the missing number?
Correct answers: 13
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles
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Calculate the number 2535

NUMBERMANIA: Calculate the number 2535 using numbers [4, 2, 2, 7, 96, 827] 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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Find number abc

If ab9a9 - 27a01 = 7ca8 find number abc. Multiple solutions may exist.
Correct answers: 17
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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MATH PUZZLE: What's the miss...

MATH PUZZLE: What's the missing number?
Correct answers: 18
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #riddles
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Calculate the number 9114

NUMBERMANIA: Calculate the number 9114 using numbers [9, 2, 9, 7, 95, 735] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math #numbermania
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Find the title of novel, using the move of a chess knight. First letter is J. Length of words in solution: 4,3,7.
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Pierre de Fermat

Born 17 Aug 1601; died 12 Jan 1665 at age 63. French mathematician who has been called the founder of the modern theory of numbers. Together with Rene Descartes, Fermat was one of the two leading mathematicians of the first half of the 17th century. He anticipated differential calculus with his method of finding the greatest and least ordinates of curved lines. He proposed the famous Fermat's Last Theorem while studying the work of the ancient Greek mathematician Diophantus. He wrote in pencil in the margin, “I have discovered a truly remarkable proof which this margin is too small to contain,” that when the Pythagorean theorem is altered to read an + bn = cn, the new equation cannot be solved in integers for any value of n greater than 2.
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