BRAIN TEASERS
Brain Teasers (page 48)

Brain Teasers (page 48)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 471 to 480.
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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (4, 6, 14, 23, 25, 33, 34, 36, 44, 62, 91) 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 77b05 - 6ba61 = 1bcaa find number abc. Multiple solutions may exist.
Correct answers: 1
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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: 1
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#brainteasers #mastermind

Can you give me a push??

A man is in bed with his wife when there is a rat-a-tat-tat on the door.

He rolls over and looks at his clock, and it's half past three in the morning. "I'm not getting out of bed at this time," he thinks, and rolls over. Then, a louder knock follows.

"Aren't you going to answer that?" says his wife.

So he drags himself out of bed and goes downstairs. He opens the door and there is man standing at the door. It didn't take the homeowner long to realize the man was drunk.

"Hi there," slurs the stranger. "Can you give me a push??"

"No, get lost. It's half past three. I was in bed," says the man and slams the door. He goes back up to bed and tells his wife what happened and she says,

"Dave, that wasn't very nice of you. Remember that night we broke down in the pouring rain on the way to pick the kids up from the baby sitter and you had to knock on that man's house to get us started again? What would have happened if he'd told us to get lost??"

"But the guy was drunk," says the husband.

"It doesn't matter," says the wife. "He needs our help and it would be the right thing to help him." So the husband gets out of bed again, gets dressed, and goes downstairs.

He opens the door, and not being able to see the stranger anywhere he shouts, "Hey, do you still want a push??"

And he hears a voice cry out, "Yeah, please."

So, still being unable to see the stranger he shouts, "Where are you?"

And the stranger replies, "I'm over here, on your swing."

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Calculate the number 9848

NUMBERMANIA: Calculate the number 9848 using numbers [7, 8, 4, 9, 11, 887] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If c5ba0 - 4ab4b = 23bca find number abc. Multiple solutions may exist.
Correct answers: 1
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#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: 2
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4100

NUMBERMANIA: Calculate the number 4100 using numbers [5, 6, 7, 9, 26, 609] 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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MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (20, 22, 24, 28, 30, 32, 52, 54, 56, 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
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If b64a3 + 647a6 = a6aacb find number abc. Multiple solutions may exist.
Correct answers: 1
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: 1
CHECK ANSWER
#brainteasers #mastermind
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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.
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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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