Daily Brain Teasers for Thursday, 21 August 2025
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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 (8, 10, 16, 18, 30, 32, 38, 39, 51, 53, 59, 64, 85) 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 cba91 + 13b91 = 9a1ba 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.
Beautiful Daughter
Once there was a millionaire, who collected live alligators. He kept them in the pool in back of his mansion. The millionaire also had a beautiful daughter who was single. One day he decides to throw a huge party, and during the party he announces, "My dear guests . . . I have a proposition to every man here. I will give one million dollars or my daughter to the man who can swim across this pool full of alligators and emerge alive!"
As soon as he finished his last word, there was the sound of a large splash!! There was one guy in the pool swimming with all he could and screaming out of fear. The crowd cheered him on as he kept stroking as though he was running for his life. Finally, he made it to the other side with only a torn shirt and some minor injuries. The millionaire was impressed.
He said, "My boy that was incredible! Fantastic! I didn't think it could be done! Well I must keep my end of the bargain. Do you want my daughter or the one million dollars?"
The guy says, "Listen, I don't want your money, nor do I want your daughter! I want the person who pushed me in that water!"
Calculate the number 963
NUMBERMANIA: Calculate the number 963 using numbers [3, 8, 6, 8, 99, 136] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Volcanic lake gasesIn 1986, more than 1700 people died when toxic gas erupted from Lake Nyos, a volcanic lake in the West African nation of Cameroon. The gas was carbon dioxide which, being more dense than air, hugged the ground and flowed down valleys. The cloud travelled as far as 15 miles (25 km) from the lake. It was moving fast enough to flatten vegetation, including a few trees. In addition to the human deaths caused by suffocation, 845 people were hospitalized and 3,000 cattle died. Lake Nyos is a few square kilometres in area, and is around 200 m deep. It is situated in the crater formed from the collapse of the pipe feeding a now extinct volcano. |
Find number abc
If cab78 - ba3b6 = b99cb 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 7299
NUMBERMANIA: Calculate the number 7299 using numbers [8, 3, 6, 6, 35, 645] 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 (7, 14, 17, 18, 27, 30, 31, 48, 51, 52) 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 ca903 + cab90 = b65093 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.
