|
Brain Teasers (page 55)puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 541 to 550. |
MAGIC SQUARE: Calculate A+B-C
The aim is to place the some numbers from the list (9, 10, 11, 24, 25, 26, 70, 71, 72, 99) 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. Find number abc
If 6b9c4 - 1a7ac = 4c169 find number abc. Multiple solutions may exist. 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. 
Private Audience With the Holy Mother
After a long life of unselfish service, Father John O'Malley died and went to heaven. St. Peter met him at the gate and said: "John, you did such a wonderful job for us on earth, we'd like to do something special for you. You name it; it's yours."
John thought for a moment and said: "I'd like a private audience with the Holy Mother." St. Peter told him it would be arranged.On the appointed day, St. Peter escorted John to the Holy Mother's sanctuary. John went before Her, knelt, and said: "Holy Mother, I've always looked to You for guidance, and You have granted me peace and serenity through some difficult times. But I have one question that has nagged me during my whole time on earth. In all the paintings that were done of you, and in all the sculptures that were carved of you, you always looked so sad. Why is that?"
Mary thought for a moment, pursing her lips. She said: "I always wanted a girl."
Calculate the number 718
NUMBERMANIA: Calculate the number 718 using numbers [9, 4, 8, 3, 27, 194] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
If 7cb06 + 69ac0 = 1a29c6 find number abc. Multiple solutions may exist. 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. Calculate the number 789
NUMBERMANIA: Calculate the number 789 using numbers [1, 5, 1, 9, 75, 765] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (6, 11, 13, 14, 21, 23, 26, 29, 32, 33, 39, 63, 81) 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. Find number abc
If a9ac7 + 990c9 = aa82bc find number abc. Multiple solutions may exist. 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.
