BRAIN TEASERS
The Most Difficult Tasks (page 40)

The Most Difficult Tasks (page 40)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 391 to 400.
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Find number abc

If c0a05 - aabc9 = 35616 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 709

NUMBERMANIA: Calculate the number 709 using numbers [7, 5, 5, 1, 25, 290] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania

Heart Attack

A middle-aged woman had a heart attack and was taken to the hospital. While on the operating table, she had a near death experience. Seeing God, she asked, "Is my time up?"
God said, "No, you have another 43 years, two months and eight days To live." Upon recovery, the woman decided to stay in the hospital and have a facelift, liposuction and tummy tuck. Since she had so much more time to live, she figured she might as well look even nicer. After her Last operation, she was released from the hospital. While crossing the street on her way home, she was killed by an ambulance.
Arriving in front of God, she demanded, "I thought you said I had another 40 years? Why didn't you pull me out of the path of that ambulance?"
God replied, "Girl, I didn't even recognize you."

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MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (3, 4, 14, 22, 23, 33, 60, 61, 62, 71) 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 8b7ba + bb03c = 927a9 find number abc. Multiple solutions may exist.
Correct answers: 0
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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4051

NUMBERMANIA: Calculate the number 4051 using numbers [3, 5, 9, 8, 28, 712] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 9bc5a + 2b92b = 11ab80 find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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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: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 9926

NUMBERMANIA: Calculate the number 9926 using numbers [5, 9, 8, 6, 56, 654] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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U.S. Malaria Eradication Program

In 1947, the National Malaria Eradication Program commenced in the U.S., which succeeded in eliminating malaria as a significant public health problem in the country by 1949. The operation was the result of cooperation between the Communicable Disease Center of the U.S. Public Health Service (CDC) with the state and local health agencies of 13 southeastern states. It was proposed by Dr. L. L. Williams. By 1949, the primary effort was 4,650,000 spray applications of the insecticide DDT in rural homes of counties with malaria prevalent. In addition, drainage operations and spraying of insecticides (sometimes by aircraft) removed mosquito breeding sites. With the success, by 1951 the CDC's role was reduced to surveillance. Worldwide efforts continue.«
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