Daily Brain Teasers for Sunday, 05 October 2025
|
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 9ab5c + 1018b = 10a5b7 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 6370
NUMBERMANIA: Calculate the number 6370 using numbers [2, 8, 2, 6, 15, 812] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Tapas Jokes, to celebrate World Tapas Day
World Tapas Day, observed annually on the third Thursday of June, is an international holiday celebrating the small Spanish Tapa dish that is usually served with drinks. Check out Tapas Jokes
What did the dyslexic man order at the Italian restaurant? Tapas.
Jesus fed 5,000 people with two fishes and a loaf of bread. That’s not a miracle. That’s tapas.
Did you hear about the plant in Baton Rouge Louisiana thats been producing spanish food since the 11th century? It's a bayou tapas-tree.
How do we know that the Normans ate small portions of Spanish food? Because of the Bayeux Tapas Tray!
What did the Spanish keyboard say? Tapas .
A man walked into a bar and ordered a beer and two plates of tapas.
Another man walked into the bar and ordered 10 beers and 20 plates of tapas.
The barman said, "That's an order of magnitude!"
I got the roast duck at a fancy tapas place downtown...
Boy, the duck might have been small but its bill sure was big.
Girlfriend took me out for tapas today.
I kept repeating 'this is a great way tapas the time'
The look of annoyance on her face was growing.
So I told her if it's annoying just tell me tapas off.
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (10, 11, 12, 20, 21, 22, 27, 32, 55, 56, 57, 72) 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.
Lars OnsagerDied 5 Oct 1976 at age 72 (born 27 Nov 1903).Norwegian-born American chemist whose development of a general theory of irreversible chemical processes gained him the 1968 Nobel Prize for Chemistry. These Onsager reciprocal relations have importance in a wide range of applications. Throughout his career, he studied the thermodynamics and kinetics of electrolytes. In 1944 he derived the exact solution of the two-dimensional Ising model, a model of a ferromagnet. This virtuosic mathematical feat led to a deeper understanding of phase transitions and critical points. From about 1940 Onsager investigated low-temperature physics. He suggested the quantization of vortices in liquid helium, and in 1952 extracted information about the distribution of electrons from the de Haas-van Alphen effect. |
Find number abc
If 5b95a - c005c = ab89b 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 334
NUMBERMANIA: Calculate the number 334 using numbers [6, 4, 2, 4, 52, 926] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If 81ac8 + 86a21 = 16ba59 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 319
NUMBERMANIA: Calculate the number 319 using numbers [6, 8, 3, 9, 44, 858] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.