BRAIN TEASERS
The Most Difficult Tasks (page 14)

The Most Difficult Tasks (page 14)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 131 to 140.
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Calculate the number 2159

NUMBERMANIA: Calculate the number 2159 using numbers [5, 8, 4, 2, 27, 278] 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 (15, 16, 19, 32, 33, 36, 44, 69, 70, 73, 78) 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 b0a78 + 6ac66 = 110cbb find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math

Home for the Holidays

Morris calls his son in NY and says, "Benny, I have something to tell you. However, I don't want to discuss it. I'm merely telling you because you're my oldest child, and I thought you ought to know. I've made up my mind, I'm divorcing Mama."The son is shocked, and asks his father to tell him what happened."I don't want to get into it. My mind is made up.""But Dad, you just can't decide to divorce Mama just like that after 54 years together. What happened?""It's too painful to talk about it. I only called because you're my son, and I thought you should know. I really don't want to get into it anymore than this. You can call your sister and tell her. It will spare me the pain.""But where's Mama? Can I talk to her?""No, I don't want you to say anything to her about it. I haven't told her yet. Believe me it hasn't been easy. I've agonized over it for several days, and I've finally come to a decision. I have an appointment with the lawyer the day after tomorrow.""Dad, don't do anything rash. I'm going to take the first flight down. Promise me that you won't do anything until I get there.""Well, all right, I promise. Next week is Passover. I'll hold off seeing the lawyer until after the Seder. Call your sister in NJ and break the news to her. I just can't bear to talk about it anymore."A half hour later, Morris receives a call from his daughter who tells him that she and her brother were able to get tickets and that they and the children will be arriving in Florida the day after tomorrow."Benny told me that you don't want to talk about it on the telephone, but promise me that you won't do anything until we both get there." Morris promises. After hanging up from his daughter, Morris turns to his wife and says, "Well, it worked this time, but we are going to have to come up with a new idea to get them here for Rosh Hashanah."
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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
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#brainteasers #mastermind
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Calculate the number 1603

NUMBERMANIA: Calculate the number 1603 using numbers [2, 9, 2, 4, 15, 254] 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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Find number abc

If 9c8c9 + a8025 = ba590a find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math
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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 352

NUMBERMANIA: Calculate the number 352 using numbers [7, 1, 3, 5, 14, 847] 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 (13, 16, 24, 29, 32, 36, 40, 61, 70, 73, 81, 93) 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 b710b + b153a = 1c8ba0 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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Yosemite Grant

In 1864, by Act of Congress (13 Stat., 325) a grant was made to the State of California of the “Yo-Semite Valley” and the land embracing the “Mariposa Big Tree Grove.” Thus for all time the area was protected for “public use, resort, and recreation.” An Act on 1 Oct 1890 reserved additional areas of forest land in California, and created Yosemite National Park under the control of the Secretary of the Interior. On 3 Mar 1905, the State of California receded and regranted the Yosemite Valley land to the United States of America. Thus responsibility and maintenance costs were transferred to the federal government for the National Park, now the third oldest.«
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