BRAIN TEASERS
Monthly Archive - February 2020

Monthly Archive - February 2020

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Find the right 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: 28
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #mastermind
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Calculate the number 1558

NUMBERMANIA: Calculate the number 1558 using numbers [9, 6, 6, 3, 71, 280] 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 (5, 8, 11, 18, 21, 24, 31, 67, 70, 73, 84, 95) 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: 9
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare

You CAN take it with you?

There once was a rich man who was near death. He was very grieved because he had worked so hard for his money and he wanted to be able to take it with him to heaven. So he began to pray that he might be able to take some of his wealth with him.

An angel hears his plea and appears to him. "Sorry, but you can't take your wealth with you." The man implores the angel to speak to God to see if He might bend the rules.

The man continues to pray that his wealth could follow him. The angel reappears and informs the man that God has decided to allow him to take one suitcase with him. Overjoyed, the man gathers his largest suitcase and fills it with pure gold bars and places it beside his bed.

Soon afterward the man dies and shows up at the Gates of Heaven to greet St. Peter. St. Peter seeing the suitcase says, "Hold on, you can't bring that in here!"

But the man explains to St. Peter that he has permission and asks him to verify his story with the Lord. Sure enough, St. Peter checks and comes back saying, "You're right. You are allowed one carry-on bag, but I'm supposed to check its contents before letting it through."

St. Peter opens the suitcase to inspect the worldly items that the man found too precious to leave behind and exclaims, "You brought pavement?!!!"

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Find number abc

If b1a30 + 6c047 = c0a77 find number abc. Multiple solutions may exist.
Correct answers: 30
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: 32
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 3508

NUMBERMANIA: Calculate the number 3508 using numbers [4, 3, 1, 9, 54, 605] 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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Find number abc

If bc17a - 6a575 = 255cb find number abc. Multiple solutions may exist.
Correct answers: 18
The first user who solved this task is Nasrin 24 T.
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: 27
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 2815

NUMBERMANIA: Calculate the number 2815 using numbers [1, 4, 4, 1, 27, 203] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
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 (5, 8, 10, 13, 16, 18, 37, 40, 43, 45, 67) 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: 10
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Thomas Savery

Died 15 May 1715 (born c. 1650).English engineer and inventor of a steam-powered water pumpwhich he patented (1698). His pump used a vessel first filled with steam When externally cooled with water, the resulting vacuum lifted water to be pumped from a lower sump. Then more high-pressure steam filled the vessel to force the water to a higher level. High fuel consumption and failures, due to construction materials unable to contain the pressure, meant the design was unsuccessful for use in mines. However, it provided a basis for Thomas Newcomen to improve for his pumps. His other patents included a method for polishing glass plate (1649), and an idea for capstan-driven paddle-wheels for becalmed ships.«[Note: Year of birth, and date of death are known only approximately.]
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