BRAIN TEASERS
Monthly Archive - July 2019 (page 3)

Monthly Archive - July 2019 (page 3)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30.
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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (15, 16, 22, 24, 25, 31, 36, 37, 43, 61, 79) 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: 18
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #magicsquare
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Find number abc

If 84b24 - 4a804 = c4820 find number abc. Multiple solutions may exist.
Correct answers: 34
The first user who solved this task is Nasrin 24 T.
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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: 28
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind

All I want is a beer

One Friday night, a 17-year-old boy went into a bar and sat down at a table in the corner of the pool room. When the waitress walked over to his table, the teenager said: "Gimme a beer."

The waitress eyed him for a moment and said: "Look, sonny. Do you want to get me in trouble?"

The boy glanced back at her and replied: "Maybe later. Right now all I want is a beer."  

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Calculate the number 1846

NUMBERMANIA: Calculate the number 1846 using numbers [3, 7, 5, 1, 36, 910] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 66
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 4cac9 - 4c0b5 = c54 find number abc. Multiple solutions may exist.
Correct answers: 39
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math
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Calculate the number 3221

NUMBERMANIA: Calculate the number 3221 using numbers [8, 7, 4, 5, 71, 860] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
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 (4, 9, 10, 17, 23, 24, 31, 43, 44, 47, 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: 16
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If cc48c - ca3bb = 8a23 find number abc. Multiple solutions may exist.
Correct answers: 28
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#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: 22
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 5389

NUMBERMANIA: Calculate the number 5389 using numbers [7, 7, 1, 7, 27, 750] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Walter Bruch

Died 5 May 1990 at age 82 (born 2 Mar 1908).German electrical engineer who invented the Phase Alternating Line (PAL) colour television system adopted in Europe. On a trip to America in 1953, he found inadequacies in the system as first developed there (NTSC, National Television Standards Committee). He returned to German employer, Telefunken, and researcheda way to improve colour stability without need for tint and hue controls. By 1961, a preliminary patent was filed, but was superceded on 30 Dec 1962 with a definitive version of the PAL system. There followed a struggle for to be recognized as the best coding method. Britain selected PAL as superior to NTSC and introduced it on 1 Jul 1967. Germany followed on 25 Aug 1967. Eventually most of the world, too.«
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