BRAIN TEASERS
Monthly Archive - January 2024 (page 2)

Monthly Archive - January 2024 (page 2)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20.
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Find number abc

If 231a6 + 5baac = aa95b find number abc. Multiple solutions may exist.
Correct answers: 1
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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: 3
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#brainteasers #mastermind
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Calculate the number 7045

NUMBERMANIA: Calculate the number 7045 using numbers [6, 3, 4, 5, 94, 731] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
CHECK ANSWER
#brainteasers #math #numbermania

A Sunday School teacher of pre...

A Sunday School teacher of preschoolers was concerned that his students might be a little confused about Jesus Christ because of the Christmas season emphasis on His birth. He wanted to make sure they understood that the birth of Jesus occurred a long time ago, that He grew up, etc. So he asked his class, "Where is Jesus today?"
Steven raised his hand and said, "He's in heaven."
Mary was called on and answered, "He's in my heart."
Little Johnny, waving his hand furiously, blurted out, "I know! I know! He's in our bathroom!!!"
The whole class got very quiet, looked at the teacher, and waited for a response. The teacher was completely at a loss for a few very long seconds. He finally gathered his wits and asked Little Johnny how he knew this.
And Little Johnny said, "Well...every morning, my father gets up, bangs on the bathroom door, and yells 'Jesus Christ, are you still in there?'!"
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (24, 25, 26, 27, 31, 32, 51, 72, 74, 79) 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: 1
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#brainteasers #math #magicsquare
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Find number abc

If b8a00 - b554b = c151 find number abc. Multiple solutions may exist.
Correct answers: 4
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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: 3
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 2487

NUMBERMANIA: Calculate the number 2487 using numbers [7, 9, 1, 2, 82, 341] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If a4c2c + 64a96 = b3932b find number abc. Multiple solutions may exist.
Correct answers: 2
CHECK ANSWER
#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: 2
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1134

NUMBERMANIA: Calculate the number 1134 using numbers [6, 4, 6, 7, 67, 877] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
CHECK ANSWER
#brainteasers #math #numbermania
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Machine gun

In 1718, a "Defence" rapid-fire gun was patented by a London lawyer, James Puckle (1667 - 1724). It is sometimes considered an ancestor of the machine gun. It was, in effect, a flintlock revolver with a barrel 3 feet long and a bore of 1.25 inches. A pre-loaded "cylinder" held 11 charges and could fire 63 shots in 7 minutes. (This rate of 9 shots/min was three times quicker than the fastest infantryman.) The patent described it as "A portable gun or machine called a Defence, that discharges soe often and soe many bullets, and can be soe quickly loaded as renders it next to impossible to carry any ship by boarding," which indicates shipboard use was intended. British patent No. 418 (1718). He began manufacture at White Cross Alley factory in 1721.«[Image: (top) detail of gun (bottom) gun shown in patent drawing on tripod mount.]
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