BRAIN TEASERS
The Most Difficult Tasks (page 34)

The Most Difficult Tasks (page 34)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 331 to 340.
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Calculate the number 1372

NUMBERMANIA: Calculate the number 1372 using numbers [2, 1, 6, 3, 56, 630] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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Find number abc

If 4c698 - a00b3 = ac64b find number abc. Multiple solutions may exist.
Correct answers: 0
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Calculate the number 4721

NUMBERMANIA: Calculate the number 4721 using numbers [9, 7, 6, 5, 96, 697] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania

When the wise company presiden...

When the wise company president learned that his employees were tanking upon no-trace vodka martinis during their lunch hours, he issued the following memo:
To all employees; If you must drink during you lunch hours, please drink whiskey. It is better for our customers to know you're drunk than to think you're stupid.
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (3, 5, 6, 13, 15, 16, 23, 27, 45, 47, 48, 90) 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: 0
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#brainteasers #math #magicsquare
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Calculate the number 2343

NUMBERMANIA: Calculate the number 2343 using numbers [2, 8, 1, 4, 67, 249] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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#brainteasers #math #numbermania
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Calculate the number 926

NUMBERMANIA: Calculate the number 926 using numbers [8, 2, 6, 3, 36, 861] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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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 (12, 13, 15, 16, 23, 26, 61, 63, 68, 69, 79, 88) 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: 0
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#brainteasers #math #magicsquare
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Calculate the number 8404

NUMBERMANIA: Calculate the number 8404 using numbers [8, 9, 4, 4, 65, 949] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
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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 (9, 10, 11, 14, 15, 16, 42, 54, 55, 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: 0
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#brainteasers #math #magicsquare
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Find number abc

If a606b + 8227b = 1c8cc8 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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Leo Hendrik Baekeland

Born 14 Nov 1863; died 23 Feb 1944 at age 80. Leo Henricus Arthur Baekeland was a Belgian-American industrial chemist who invented the first thermosetting plastic, Bakelite, that did not soften when heated. His first successful invention was Velox (in the 1890's), a photographic paper that could be used with artificial light rather than sunlight, which he sold in 1899 to George Eastman for $1 million. He then experimented to find a synthetic substitute for shellac, a useful insulator of wires in electric coils. Eventually, he was able to control heat and pressure for a formaldehyde-phenol reaction. By 1909, he displayed the world's first fully synthetic plastic, which could be used not only for insulators, but moulded into buttons, knobs and countless other items. With this patented product, he helped found the modern plastics industry.«
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