BRAIN TEASERS
Monthly Archive - January 2021 (page 3)

Monthly Archive - January 2021 (page 3)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30.
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Calculate the number 5547

NUMBERMANIA: Calculate the number 5547 using numbers [7, 4, 2, 5, 95, 564] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math #numbermania
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Find number abc

If c9ac8 - 11288 = 2815b 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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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

Letters from Little Boys to God

Dear God, Why is Sunday School on Sunday? I thought it was supposed to be our day of rest. Tom L.Dear God, I went to this wedding on Sunday and they kissed right in the church! Is that O.K.?NeilDear God,If you watch me in church on Sunday, I'll show you my new shoes.Mickey D.Dear God,Please send me a pony. I never asked for anything before. You can look it up.BruceDear God,If you give me a genie lamp like in Aladdin, I will give you anything you want, except my money or my chess set.RaphaelDear God,Please put another holiday between Christmas and Easter. There is nothing good in there now.GregDear God,Please send Dennis Clark to another camp this summer.PeterDear God,You don't have to worry about me. I look both ways.DeanDear God,Are you really invisible or is that just a trick?DougDear God,I want to be just like my Daddy when I get big but not with so much hair.Sam Dear God,I am American. What are you?RobertDear God,If you didn't let the dinosaur become extinct, we wouldn't have this country. You did the right thing.JonathanDear God,Maybe Cain and Abel would not kill each other if they had their own rooms. It works with my brother.LarryDear God,I do not think anybody could be a better God. Well, I just want you to know that I am not saying that because you are God already.CharlesDear God,I didn't think orange went with purple until I saw the sunset you made on Thursday. That was cool!Eugene-
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Calculate the number 1504

NUMBERMANIA: Calculate the number 1504 using numbers [7, 4, 8, 8, 15, 309] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
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 (1, 3, 6, 11, 14, 21, 23, 26, 28, 30, 33, 60, 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: 14
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 612a6 - 11666 = abc80 find number abc. Multiple solutions may exist.
Correct answers: 26
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: 45
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1372

NUMBERMANIA: Calculate the number 1372 using numbers [8, 1, 6, 2, 90, 644] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 15
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 79bc0 + a18c1 = 121ab1 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: 32
The first user who solved this task is NĂ­lton CorrĂȘa de Sousa.
CHECK ANSWER
#brainteasers #mastermind
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Parts standardization

In 1813, for the first time in the U.S., a requirement for standardization in factory production became part of a federal government contract which specified interchangeable parts. Twenty thousand pistols were ordered from the contractor, Col. Simeon North of Berlin, Conn. to be made such that "component parts of the pistols are to correspond so exactly that any limb or part of one pistol may be fitted to any other pistol of the 20,000." The contract price was $7 per pistol, to be delivered over a five year period. Since 1810, Col. North had already owned a pistol factory in Middletown, Conn., and produced the pistols at the rate of about 10,000 per year.
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