BRAIN TEASERS
The Most Difficult Tasks (page 42)

The Most Difficult Tasks (page 42)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 411 to 420.
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Calculate the number 7456

NUMBERMANIA: Calculate the number 7456 using numbers [6, 6, 8, 3, 52, 609] 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 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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Find number abc

If b9802 + b8aa4 = 385ac find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math

Love vs Marriage

Love is holding hands in the street.
Marriage is holding arguments in the street.
Love is dinner for 2 in your favorite restaurant.
Marriage is Chinese take-out.
Love is cuddling on a sofa.
Marriage is deciding on a sofa.
Love is talking about having children.
Marriage is talking about getting away from children.
Love is going to bed early.
Marriage is going to sleep early.
Love is a romantic drive.
Marriage is a long, hot ride.
Love is losing your appetite.
Marriage is losing your figure.
Love is sweet nothings in the ear.
Marriage is sweet nothings in the bank.
Love is a flickering flame.
Marriage is a flickering television.
Love is 1 drink and 2 straws.
Marriage is "Don't you think you've had enough?!"
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Which is a winning combination of digits?

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 1702

NUMBERMANIA: Calculate the number 1702 using numbers [4, 3, 3, 5, 74, 366] 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 b59c1 - 17103 = caa1a 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 4569

NUMBERMANIA: Calculate the number 4569 using numbers [2, 7, 8, 5, 64, 473] 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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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (2, 4, 5, 6, 8, 9, 14, 38, 40, 41, 62) 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
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If babaa - 12c29 = a322b find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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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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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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