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The Most Difficult Tasks (page 102)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1011 to 1020. |
Calculate the number 5875
. Each of the numbers can be used only once.','/archive/2022/12/26/numbermania-1672013101.png','/calculate-the-number-5875/7493'))
NUMBERMANIA: Calculate the number 5875 using numbers [5, 9, 6, 3, 73, 515] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Calculate the number 3976
. Each of the numbers can be used only once.','/archive/2022/12/23/numbermania-1671753901.png','/calculate-the-number-3976/7490'))
NUMBERMANIA: Calculate the number 3976 using numbers [1, 4, 7, 2, 88, 795] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A+B-C
 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.','/archive/2022/12/22/magic-square-1671667554.png','/MAGIC-SQUARE-Calculate-A-B-C/7489'))
The aim is to place the some numbers from the list (17, 19, 20, 23, 25, 26, 47, 61, 63, 64, 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. 
Boy Scout on the plane
A doctor, a lawyer, a little boy scout and a pastor were out for a Sunday afternoon flight on a small private plane.
Suddenly, the plane developed engine trouble. In spite of the best efforts of the pilot, the plane started to go down.
Finally, the pilot grabbed a parachute, yelled to the passengers that they had better jump, and bailed out.
Unfortunately there were only three parachutes remaining.
The doctor grabbed one and said "I'm a doctor, I save lives, so I must live," and jumped out.
The lawyer then said "I'm the smartest man in the world, I deserve to live!" He grabbed a parachute and jumped, also.
The pastor looked at the little boy scout and said, "My son, I've lived a long and full life. You are young and have your whole life ahead of you. Take the last parachute and live in peace."
The little boy scout handed the parachute back to the pastor and said "Not to worry, Preacher. 'The smartest man in the world' just jumped out with my back pack."
Find number abc
)
If 744cb - abbca = 17c01 find number abc. Multiple solutions may exist. 
Find number abc
)
If 6caac - ccb42 = 29261 find number abc. Multiple solutions may exist. Calculate the number 6608
. Each of the numbers can be used only once.','/archive/2022/12/05/numbermania-1670198701.png','/calculate-the-number-6608/7472'))
NUMBERMANIA: Calculate the number 6608 using numbers [5, 7, 3, 7, 48, 614] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Calculate the number 4033
. Each of the numbers can be used only once.','/archive/2022/12/02/numbermania-1669939501.png','/calculate-the-number-4033/7469'))
NUMBERMANIA: Calculate the number 4033 using numbers [5, 5, 4, 5, 61, 824] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A-B-C
 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.','/archive/2022/12/01/magic-square-1669853156.png','/MAGIC-SQUARE-Calculate-A-B-C/7468'))
The aim is to place the some numbers from the list (1, 2, 3, 6, 18, 19, 22, 32, 33, 34, 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. Calculate the number 8967
. Each of the numbers can be used only once.','/archive/2022/11/28/numbermania-1669593902.png','/calculate-the-number-8967/7465'))
NUMBERMANIA: Calculate the number 8967 using numbers [3, 5, 8, 7, 12, 808] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. What a winning combination?
. 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.','/archive/2022/11/26/mastermind-1669421101.png','/What-a-winning-combination/7463'))
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. 
