BRAIN TEASERS
Brain Teasers (page 124)

Brain Teasers (page 124)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 1231 to 1240.
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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: 5
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 3639

NUMBERMANIA: Calculate the number 3639 using numbers [8, 6, 3, 9, 52, 537] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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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 (3, 6, 7, 8, 17, 30, 31, 32, 50, 53, 54, 55, 78) 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: 1
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#brainteasers #math #magicsquare

A very drunk gent checked into...

A very drunk gent checked into a hotel late one Saturday night. He awoke very ill and summoned a bellboy to fetch him a bottle of whiskey and a Sunday newspaper. The bellhop was gone a long time.
When he returned, the drunk remarked, "It must be hard to buy a bottle in this town on Sunday."
"There was no trouble with the whiskey," replied the bellboy, "but it's tough finding a Sunday paper on Tuesday."
Jokes of the day - Daily updated jokes. New jokes every day.
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Find number abc

If ca661 - 544b8 = ac18a find number abc. Multiple solutions may exist.
Correct answers: 5
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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: 5
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 2160

NUMBERMANIA: Calculate the number 2160 using numbers [1, 9, 2, 3, 53, 381] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If 188a6 + cb3c4 = 8a2cb find number abc. Multiple solutions may exist.
Correct answers: 2
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: 3
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4451

NUMBERMANIA: Calculate the number 4451 using numbers [9, 1, 3, 6, 28, 357] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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 (2, 4, 5, 7, 13, 14, 16, 56, 58, 67, 85) 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: 1
CHECK ANSWER
#brainteasers #math #magicsquare
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Johann Heinrich Lambert

Died 25 Sep 1777 at age 49 (born 26 Aug 1728). Swiss-German mathematician, astronomer, physicist, and philosopher who provided the first rigorous proof that pi is irrational (cannot be expressed as the quotient of two integers). In 1766, Lambert wrote Theorie der Parallellinien, a study of the parallel postulate. By assuming that the parallel postulate was false, he deduced many non-euclidean results. He noticed that in this new geometry the sum of the angles of a triangle increases as its area decreases. Lambert conjectured that e and p are transcendental, though this was not proved for another century. He is responsible for many innovations in the study of heat and light, devised a method of measuring light intensity, as well as working on the theory of probability.
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