BRAIN TEASERS
Brain Teasers (page 39)

Brain Teasers (page 39)

puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 381 to 390.
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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (17, 20, 21, 24, 26, 27, 28, 33, 38, 41, 42, 93, 98) 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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Find number abc

If a6b2b + 77797 = c3b22c 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: 1
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#brainteasers #mastermind

I get so drunk that I imagine things

The drunk was floundering down the alley carrying a box with holes on the side. He bumped into a friend who asked, "What do you have in there, pal?"

"A mongoose."

"What for?"

"Well, you know how drunk I can get. When I get drunk I see snakes, and I'm scared to death of snakes. That's why I got this mongoose, for protection."

"But," the friend said, "you idiot! Those are imaginary snakes."

"That's okay," said the drunk, showing his friend the interior of the box, "So is the mongoose."

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Calculate the number 241

NUMBERMANIA: Calculate the number 241 using numbers [4, 4, 8, 5, 42, 400] 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 b4a4a - 8ca37 = 8008 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
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 7899

NUMBERMANIA: Calculate the number 7899 using numbers [5, 4, 3, 1, 34, 954] 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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MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (17, 18, 19, 20, 23, 25, 29, 30, 35, 89, 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
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 94c7c + b663a = bbb5b0 find number abc. Multiple solutions may exist.
Correct answers: 1
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: 1
CHECK ANSWER
#brainteasers #mastermind
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Edison patent

In 1893, a patent for a "Roller for Crushing Ore or Other Material" was issued to Thomas A. Edison (U.S. No. 498,385). Edison had in mind crushing iron ore. "It is usual in ore crushing machines employing rollers to mount them in pairs on suitable supporting frames and to provide means for driving each pair, and for feeding material to be crushed separately to each pair of rollers and to provide separate means for pressing the rollers of each pair together. In the machine to be described I employ three or more rollers supported side by side in a frame and moveable towards or away from each other, instead of using them in pairs, and a single weight and lever serves to press all of said rollers together."Image: drawing of the side elevation of the apparatus.
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