Daily Brain Teasers for Friday, 07 July 2023
|
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 7266
NUMBERMANIA: Calculate the number 7266 using numbers [7, 7, 3, 7, 29, 707] 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 (14, 15, 22, 23, 25, 27, 28, 33, 38, 73, 88, 97) 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 7c8b7 - b0b57 = acaa0 find number abc. Multiple solutions may exist.
Free meat
It was many years ago since the embarrassing day when a young woman, with a baby in her arms, entered his butcher shop and confronted the butcher with the news that the baby was his and asked what was he going to do about it?
Finally he offered to provide her with free meat until the boy was 16. She agreed.
He had been counting the years off on his calender, and one day the teenager who had been collecting the meat each week, came into the shop and said, "I'll be 16 tomorrow."
"I know," said the butcher with a smile, "I've been counting too, tell your mother, when you take this parcel of meat home, that it is the last free meat she'll get, and watch the expression on her face."
When the boy arrived home he told his mother. The woman nodded and said, "Son, go back to the butcher and tell him I have also had free bread, free milk, and free groceries for the last 16 years and watch the expression on HIS face!"
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.
Rudolf WolfBorn 7 Jul 1816; died 6 Dec 1893 at age 77.Swiss astronomer and astronomical historian. Wolf's main contribution was the discovery of the 11 year sunspot cycle and he was the codiscoverer of its connection with geomagnetic activity on Earth. In 1849 he devised a system now known as Wolf's sunspot numbers. This system is still in use for studying solar activity by counting sunspots and sunspot groups. In mathematics, Wolf wrote on prime number theory and geometry, then later on probability and statistics - a long paper discussed Buffon's needle experiment. He estimated πby Monte Carlo methods. |
Calculate the number 1932
NUMBERMANIA: Calculate the number 1932 using numbers [8, 4, 2, 4, 36, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If 762ba - 61206 = 1502c find number abc. Multiple solutions may exist.
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.
Calculate the number 7465
NUMBERMANIA: Calculate the number 7465 using numbers [3, 5, 8, 5, 93, 440] 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 (9, 10, 13, 14, 20, 24, 38, 39, 49, 80, 97) 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 49aba + 24082 = bc25c find number abc. Multiple solutions may exist.
