Daily Brain Teasers for Thursday, 06 August 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
MAGIC SQUARE: Calculate A*B+C
The aim is to place the some numbers from the list (20, 21, 23, 25, 30, 31, 35, 65, 66, 70) 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 880c7 - bb71a = 5cbb5 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.
That Darn Cat
A man who absolutely hated his wife's cat decided to get rid of him one day by driving him 20 blocks from his home and leaving him at the park.
As he was nearing home, the cat was walking up the driveway.
The next day, he decided to drive the cat 40 blocks away and try the same thing.
As we was driving back into his driveway, there was the cat! He kept taking the cat farther and farther away, but the darn cat would always beat him home.
At last, he decided to drive a few miles away, turn right, then left, past the bridge, then right again and another right and so on until he reached what he thought was a safe distance from his home and he left the cat there.
Hours later, the man calls home to his wife: "Jen, is the cat there?"
"Yes," the wife answers. "Why do you ask?"
Frustrated, the man answers: "Put that damn cat on the phone. I'm lost and I need directions!"
Calculate the number 2753
NUMBERMANIA: Calculate the number 2753 using numbers [4, 2, 2, 4, 62, 905] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Jon PostelBorn 6 Aug 1943; died 16 Oct 1998 at age 55.Jonathan Bruce Postel was an American computer scientist who played a pivotal role in creating and administering the Internet. In the late 1960s, Postel was a graduate student developing the ARPANET, a forerunner of the Internet for use by the U.S. Dept. of Defense. As director of the Internet Assigned Numbers Authority (IANA), which he formed, Postel was a creator of the Internet's address system. The Internet grew rapidly in the 1990s, and there was concern about its lack of regulation. Shortly before his death, Postel submitted a proposal to the U.S. government for an international nonprofit organization that would oversee the Internet and its assigned names and numbers. He died at age 55, from complications after heart surgery. |
Find number abc
If 972cb - 17aca = 79c94 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 883
NUMBERMANIA: Calculate the number 883 using numbers [5, 2, 9, 7, 27, 823] 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 (12, 13, 16, 20, 21, 24, 29, 30, 32, 33, 59) 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 65c5b - b5ac3 = 3a50a 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.
