BRAIN TEASERS
Monthly Archive - March 2020 (page 3)

Monthly Archive - March 2020 (page 3)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30.
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Find number abc

If 78bcb + 68074 = 146ab6 find number abc. Multiple solutions may exist.
Correct answers: 29
The first user who solved this task is Nílton Corrêa de Sousa.
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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: 28
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 6679

NUMBERMANIA: Calculate the number 6679 using numbers [9, 1, 7, 1, 36, 665] 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

Old friends

Mary and Jane are old friends. They have both been married to their husbands for a long time; Mary is upset because she thinks her husband doesn't find her attractive anymore.

"As I get older he doesn't bother to look at me!" Mary cries.

"I'm so sorry for you, as I get older my husband says I get more beautiful every day." replies Jane.

"Yes, but your husband's an antique dealer!"

Jokes of the day - Daily updated jokes. New jokes every day.
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Find number abc

If c86cb + 8bb70 = a3c2ab find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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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: 35
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 7037

NUMBERMANIA: Calculate the number 7037 using numbers [4, 9, 1, 8, 57, 793] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 8
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 (7, 10, 11, 12, 14, 15, 34, 38, 39, 94) 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
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Find number abc

If 84acc + abb2a = c78240 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nílton Corrêa de Sousa.
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: 32
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 7263

NUMBERMANIA: Calculate the number 7263 using numbers [5, 7, 4, 2, 80, 790] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Fazil Hashim.
CHECK ANSWER
#brainteasers #math #numbermania
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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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