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Brain Teasers (page 97)puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 961 to 970. |
Calculate the number 7959
NUMBERMANIA: Calculate the number 7959 using numbers [9, 7, 1, 3, 72, 484] 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 (8, 10, 12, 14, 19, 21, 53, 57, 61, 64, 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 c6cb2 - 2a624 = 26acb find number abc. Multiple solutions may exist. 
Growing Wild
Here is this guy who really takes care of his body; he lifts weights and jogs five miles every day.
One morning, he looks into the mirror and admires his body. He notices that he is really sun tanned all over except one part and he decides to do something about it.
He goes to the beach, completely undresses and buries himself in the dand except for the one part sticking out.
Two little old ladies are strolling along the beach and one looks down and says, "There really is no justice in this world."
The other little old lady says, "What do you mean?"
The first little old lady says, "Look at that."
"When I was 10 years old, I was afraid of it."
"When I was 20 years old, I was curious about it."
"When I was 30 years old, I enjoyed it."
"When I was 40 years old, I asked for it."
"When I was 50 years old, I paid for it."
"When I was 60 years old, I prayed for it."
"When I was 70 years old, I forgot about it."
"And now that I'm 80, the damned things are growing wild!!"
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 722
NUMBERMANIA: Calculate the number 722 using numbers [9, 3, 2, 4, 71, 274] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find number abc
If 231a6 + 5baac = aa95b 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. Calculate the number 7045
NUMBERMANIA: Calculate the number 7045 using numbers [6, 3, 4, 5, 94, 731] 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 (24, 25, 26, 27, 31, 32, 51, 72, 74, 79) 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 b8a00 - b554b = c151 find number abc. Multiple solutions may exist.
