BRAIN TEASERS
Monthly Archive - September 2020

Monthly Archive - September 2020

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

If 5c496 - a6aba = a7a94 find number abc. Multiple solutions may exist.
Correct answers: 25
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: 22
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 253

NUMBERMANIA: Calculate the number 253 using numbers [8, 2, 3, 6, 40, 156] 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.
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#brainteasers #math #numbermania

Joan & Bob had been married 50 yrs when...

Joan & Bob had been married 50 yrs when she suggested they take a cruise. "We could go for a week & make wild love like when we were young." He eagerly agreed, went to the pharmacy & bought a bottle of seasick pills & a tube of lubricant. Joan: "The kids are on their own, why not go for a month?" Bob went back & bought 4 bottles of seasick pills & 4 tubes of lubricant. Joan said, "It's our 50th! Let's cruise around the world!" Bob went back & bought bags of seasick pills & lubricant. Pharmacist finally asked, "If it makes you that sick, why do you do it?”
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Find number abc

If c4ab5 + c75b1 = 171cab find number abc. Multiple solutions may exist.
Correct answers: 23
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 5117

NUMBERMANIA: Calculate the number 5117 using numbers [8, 3, 2, 2, 35, 928] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 7
The first user who solved this task is Nasrin 24 T.
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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, 4, 5, 6, 7, 9, 18, 33, 39, 40, 43, 83, 88) 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: 12
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #magicsquare
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Find number abc

If a2ab0 - 3a705 = cc1a5 find number abc. Multiple solutions may exist.
Correct answers: 26
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Calculate the number 306

NUMBERMANIA: Calculate the number 306 using numbers [1, 1, 9, 9, 63, 226] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Find number abc

If 3bca6 - b3937 = 8c79 find number abc. Multiple solutions may exist.
Correct answers: 29
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: 34
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Alexander Wetmore

Died 7 Dec 1978 at age 92 (born 18 Jun 1886).Frank Alexander Wetmore was an American ornithologist, whose first name was never used, became a prominent ornithologist and avian paleontologist, noted for his research on birds of the Western Hemisphere. Between 1910 and 1924, he worked for with the U.S. Bureau of Biological Survey, Department of Agriculture. In 1925, he was appointed Assistant Secretary, head of the Smithsonian's U.S. National Museum. From 1945 to 1952, he served as the sixth Secretary of the Smithsonian Institution. Upon retiring, he continued his research at the Smithsonian Institution for another quarter century.
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