BRAIN TEASERS
The Most Difficult Tasks (page 194)

The Most Difficult Tasks (page 194)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1931 to 1940.
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MAGIC SQUARE: Calculate A-B-C

The aim is to place the some numbers from the list (1, 2, 6, 7, 8, 9, 16, 17, 26, 28, 36) 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: 12
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Calculate the number 2580

NUMBERMANIA: Calculate the number 2580 using numbers [4, 4, 8, 8, 77, 333] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 4450

NUMBERMANIA: Calculate the number 4450 using numbers [4, 5, 7, 2, 25, 898] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania

World Creativity and Innovation Day Jokes

April 21st is World Creativity and Innovation Day! Find some jokes about it!

Why did the scientist install a knocker on his laboratory door?
Because he wanted to win the "No-bell" prize!

What do you call an innovation in scissors?
Cutting-edge technology

When the first jackhammer was invented... ...it was a groundbreaking innovation!

Jokes of the day - Daily updated jokes. New jokes every day.
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Calculate the number 2593

NUMBERMANIA: Calculate the number 2593 using numbers [2, 2, 8, 3, 85, 960] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #numbermania
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Calculate the number 205

NUMBERMANIA: Calculate the number 205 using numbers [6, 9, 1, 5, 19, 156] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Fazil Hashim.
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 (3, 4, 5, 6, 7, 9, 18, 33, 39, 40, 43, 83, 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: 12
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 (2, 5, 7, 16, 19, 21, 34, 55, 58, 60) 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: 12
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Calculate the number 1221

NUMBERMANIA: Calculate the number 1221 using numbers [4, 1, 8, 5, 29, 998] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
The first user who solved this task is Nasrin 24 T.
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, 7, 8, 14, 17, 18, 32, 36, 39, 40, 84) 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: 12
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
[link]

MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (17, 18, 21, 31, 32, 35, 41, 42, 43, 45, 84, 87, 89) 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: 12
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare
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Surgical Zippers

In 1985, zippers for stitches were announced by Dr. H. Harlan Stone this day. The surgeon had used zippers on 28 patients, on whom he thought he might have to re-operate, because of internal bleeding following initial operations. The zippers which lasted between five and 14 days, were then replaced with permanent stitches. Current types of surgical zipper are self-adhesive in application and can be applied to both outpatients and inpatients. Uncomplicated wound inspection is possible from the third postoperative day. However, it is possible earlier with manual support to either side of the wound.
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