BRAIN TEASERS
The Easiest Tasks (page 617)

The Easiest Tasks (page 617)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 6161 to 6170.
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Find number abc

If 88502 + bb0b8 = ca5580 find number abc. Multiple solutions may exist.
Correct answers: 4
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Find number abc

If 4bbaa - b8077 = ac045 find number abc. Multiple solutions may exist.
Correct answers: 4
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MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (14, 15, 16, 18, 19, 20, 32, 33, 34, 54, 93) 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: 4
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#brainteasers #math #magicsquare

Two Elderly Gentlemen

Two elderly gentlemen, who had been without sex for several years, decided they needed to visit a cat-house for some tail..... When they arrived, the madam took one look at them and decided she wasn't going to waste any of her girls on these two old men.
So she used "blow-up" dolls instead. She put the dolls in each man's room and left them to their business. After the two men were finished, they started walking home and began to talking. The first man said, "I think the girl I had was dead. She never moved, talked or even groaned... how was it for you?"
The second man replied, "I think mine was a witch. When I nibbled on her breast..... she farted and flew out the window!"    

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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: 4
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#brainteasers #mastermind
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Calculate the number 489

NUMBERMANIA: Calculate the number 489 using numbers [9, 9, 4, 5, 97, 992] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
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#brainteasers #math #numbermania
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Calculate the number 1612

NUMBERMANIA: Calculate the number 1612 using numbers [4, 9, 9, 8, 89, 169] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
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#brainteasers #math #numbermania
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Find number abc

If 649c2 - 5b95c = ba0b5 find number abc. Multiple solutions may exist.
Correct answers: 4
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#brainteasers #math
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Calculate the number 6709

NUMBERMANIA: Calculate the number 6709 using numbers [1, 6, 3, 2, 31, 950] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
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#brainteasers #math #numbermania
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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: 4
CHECK ANSWER
#brainteasers #mastermind
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (8, 12, 15, 32, 36, 39, 63, 67, 68, 70) 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: 4
CHECK ANSWER
#brainteasers #math #magicsquare
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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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Jean-Marie Lehn

Born 30 Sep 1939.French chemist who shared (with Charles J. Pedersen and Donald J. Cram) the 1987 Nobel Prize for Chemistry, for his contribution to the laboratory synthesis of molecules that mimic the vital chemical functions of molecules in living organisms. Such molecules have a highly selective, structure specific interaction. These molecules can “recognize”each other and choose with which other molecules they will form complexes. Of low molecular weight and with very special properties, the molecules in these compounds bind in a selective manner, like a key fits a lock.
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