BRAIN TEASERS
Monthly Archive - June 2022 (page 2)

Monthly Archive - June 2022 (page 2)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20.
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Calculate the number 2901

NUMBERMANIA: Calculate the number 2901 using numbers [5, 6, 2, 8, 56, 497] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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#brainteasers #math #numbermania
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Find number abc

If c1c62 - 2a367 = b7a9b find number abc. Multiple solutions may exist.
Correct answers: 6
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: 7
CHECK ANSWER
#brainteasers #mastermind

Dumb Blonde Comp.

80,000 blondes meet in a football stadium for a "Blondes Are Not Stupid" Convention.

The leader says, "We are all here today to prove to the world that blondes are not stupid. Can I have a volunteer?"

A blonde gingerly works her way through the crowd and steps up to the stage.

The leader asks her, "What is 15 plus 15?"

After 15 or 20 seconds she says, "Eighteen!"

Obviously everyone is a little disappointed. Then 80,000 blondes start cheering, "Give her another chance! Give her another chance!"

The leader says, "Well since we've gone to the trouble of getting 80,000 of you in one place and we have the world- wide press and global broadcast media here, gee, uh, I guess we can give her another chance."

So he asks, "What is 5 plus 5?"

After nearly 30 seconds she eventually says, "Ninety?"

The leader is quite perplexed, looks down and just lets out a dejected sigh -- everyone is disheartened - the blonde starts crying and the 80,000 girls begin to yell and wave their hands shouting, "GIVE HER ANOTHER CHANCE! GIVE HER ANOTHER CHANCE!"

The leader, unsure whether or not he is doing more harm than damage, eventually says, "Ok! Ok! Just one more chance -- What is 2 plus 2?"

The girl closes her eyes, and after a whole minute eventually says, "Four?"

Throughout the stadium pandemonium breaks out as all 80,000 girls jump to their feet, wave their arms, stomp their feet and scream... "Give her another chance! Give her another chance!"

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Calculate the number 8175

NUMBERMANIA: Calculate the number 8175 using numbers [6, 4, 5, 7, 41, 913] 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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MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (9, 10, 12, 19, 20, 22, 38, 70, 71, 73, 86) 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: 2
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 86358 - 2a65b = 6c6bb find number abc. Multiple solutions may exist.
Correct answers: 5
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: 10
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 5439

NUMBERMANIA: Calculate the number 5439 using numbers [7, 9, 5, 1, 24, 769] 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 cb8a8 + 41bc6 = aa6c4 find number abc. Multiple solutions may exist.
Correct answers: 3
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: 10
CHECK ANSWER
#brainteasers #mastermind
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Fertilizer factory explosion

In 1921, a huge explosion at a fertilizer factory at Oppau, Germany, caused 500 deaths. Destruction at the site included hundreds of neighboring houses. The fertilizer made there since 1917 was a 50/50 mix of ammonium nitrate and ammonium sulphate. Storage silos reached up to a hundred feet high. This fertilizer had a tendency to form solid clumps. It had become routine to break it up ammonium sulphate with bulldozers and dynamite. The mixed fertilizer was not regarded as explosive because it was difficult to initiate and not experienced before in such circumstances. Dynamite used this time caused 4,500 tons of fertilizer to explode, creating a crater 250-ft diam. and 50-ft deep.«
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