BRAIN TEASERS
The Most Difficult Tasks (page 197)

The Most Difficult Tasks (page 197)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1961 to 1970.
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Calculate the number 9712

NUMBERMANIA: Calculate the number 9712 using numbers [3, 7, 4, 6, 16, 962] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Fazil Hashim.
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#brainteasers #math #numbermania
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Calculate the number 8437

NUMBERMANIA: Calculate the number 8437 using numbers [4, 9, 6, 7, 72, 578] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 2700

NUMBERMANIA: Calculate the number 2700 using numbers [1, 3, 8, 7, 98, 409] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania

Laura Kightlinger: Holidays for the Lonely

It goes: Christmas, New Years Eve and Valentines Day. Is that fair to anyone whos alone? Those are all days when you gotta be with someone. And if you didnt get around to killing yourself at Christmas or New Years -- boom! theres Valentines Day for you. I think there should be just one more holiday after Valentines Day, just for the stragglers -- and it should be called, Who Could Love You?
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (5, 7, 8, 20, 22, 23, 24, 56, 58, 59, 81) 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: 11
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Calculate the number 1001

NUMBERMANIA: Calculate the number 1001 using numbers [5, 2, 7, 7, 48, 341] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
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 (4, 5, 6, 12, 24, 25, 31, 44, 45, 51) 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: 11
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (16, 17, 22, 24, 25, 30, 54, 55, 60, 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: 11
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (11, 12, 17, 30, 31, 36, 44, 68, 69, 74) 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: 11
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Calculate the number 7350

NUMBERMANIA: Calculate the number 7350 using numbers [8, 9, 3, 6, 88, 621] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 2278

NUMBERMANIA: Calculate the number 2278 using numbers [9, 7, 4, 1, 30, 295] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 11
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Richard E(dwin) Shope

Died 2 Oct 1966 at age 64 (born 25 Dec 1901).American animal pathologist and virologist who was first to isolate an influenza virus, first to vaccinate animals against influenza, and first to identify (1928) the causative agent as a virus in the 1918-19 Spanish influenza pandemic. The laboratory and field studies he made of viruses in animals provided knowledge in protecting both animals and humans against viruses. He researched cancerous tumors in animals. In studying the role of mosquitoes as carriers of sleeping sickness disease, he caught the potentially fatal disease himself from them. Fortunately, he recovered completely (one of the few who did so without permanent brain damage). His co-worker, Dr. Delphine Clark, recovered "live virus" from his blood, the first to be taken from a live human.«
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