BRAIN TEASERS
Monthly Archive - June 2021

Monthly Archive - June 2021

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Find number abc

If a31cc + 67612 = 1b0a11 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
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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: 16
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 5805

NUMBERMANIA: Calculate the number 5805 using numbers [9, 3, 2, 3, 75, 961] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania

My Cheating Letters

My girlfriend is furious with me because she found a bunch of hidden letters that revealed I was cheating on her.
Now she refuses to play Scrabble at all.

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

If 88c39 - b5bb6 = 7a9a3 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: 26
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 666

NUMBERMANIA: Calculate the number 666 using numbers [9, 1, 5, 3, 89, 497] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nasrin 24 T.
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 (3, 4, 5, 18, 19, 20, 23, 30, 31, 32, 70, 75) 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: 17
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 4cba5 + cb215 = ac29b find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
[link]

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: 16
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 7055

NUMBERMANIA: Calculate the number 7055 using numbers [7, 3, 5, 5, 72, 670] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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Jan Ernest Matzeliger

Born 15 Sep 1852; died 24 Aug 1889 at age 36.Dutch Guianian-American inventor who is best known for his shoe-lasting machine that revolutionished the shoe industry by replacing the hand work of attaching the sole to the upper of a shoe. He left his homeland of Dutch Guiana and sailed for America at age 19. He settled in Lynn, Massachussetts, by about age 25, where he became a shoe stitching machine operator. There he saw the tedious and slow process of finishing the shoe by hand, and resolved to develop a machine able to do that job more efficiently. Despite being so poor that obtaining materials was difficult, he made a wooden model. He obtained a patent for his invention, issued on 20 Mar 1883. With improvements, by 1885, he had a production model ready, able to produce shoes far more rapidly than hand workers. He died of tuberculosis at the early age of not yet 37.«
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