BRAIN TEASERS
Monthly Archive - August 2025

Monthly Archive - August 2025

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
Register with your Google Account and start collecting points.
Check your ranking on list.
[link]

Find number abc

If 3104a - bcca4 = b191 find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
[link]

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.
Correct answers: 0
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 1057

NUMBERMANIA: Calculate the number 1057 using numbers [1, 4, 6, 5, 68, 103] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania

Knock Knock Collection 026

Knock Knock
Who's there?
Bitter Bianca!
Bitter Bianca who?
Bitter Bianca next train out of here, pardner!
Knock Knock
Who's there?
Bjorn!
Bjorn who?
Bjorn Free!
Knock Knock
Who's there?
Bo!
Bo who?
Bo Geste!
Knock Knock
Who's there?
Bolivia!
Boliva who?
Boliva me, I know what I'm talking about!
Knock Knock
Who's there?
Bologna!
Bologna who?
Bologna & cheese!
Jokes of the day - Daily updated jokes. New jokes every day.
[link]

MAGIC SQUARE: Calculate A*B*C

The aim is to place the some numbers from the list (1, 4, 6, 9, 10, 15, 22, 25, 31, 56, 92, 95) 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.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #magicsquare
[link]

Find number abc

If 779c9 - 4b5aa = 3c3ab find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
[link]

Calculate the number 1178

NUMBERMANIA: Calculate the number 1178 using numbers [8, 2, 7, 6, 17, 255] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
[link]

Find number abc

If ba9cc + a696b = c09b6 find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
[link]

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.
Correct answers: 1
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 960

NUMBERMANIA: Calculate the number 960 using numbers [6, 4, 3, 2, 17, 911] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
CHECK ANSWER
#brainteasers #math #numbermania
[link]

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.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #magicsquare
NEXT PAGE
Follow Brain Teasers on social networks

Top 10 Users (1174)

1. H Tav
5861
2. c. raj.
5777
3. Nasrin 24 T
5731
4. Fazil Hashim
5718
5. Thinh Ddh
5557
6. Alfa Omega
4681
7. Djordje Timotijevic
4549
8. Mita Kojd
4525
9. Jakubovski Vladimir
4443
10. Chandu Rajyaguru
4419
See full ranking list

Count of Quaregna Amedeo Avogadro

Died 9 Jul 1856 at age 79 (born 9 Aug 1776). Italian chemist and physicist who found that at the same temperature and pressure equal volumes of all perfect gases contain the same number of particles, known as Avogadro's Law (1811) leading to the Avogadro's constant being 6.022 x 1023 units per mole of a substance. He realized the particules could be either atoms, or more often, combinations of atoms, for which he coined the word "molecule." This explained Gay-Lussac's law of combining volumes (1809). Further, Avogadro determined from the electrolysis of water that it contained molecules formed from two hydrogen atoms for each atom of oxygen, by which the individual oxygen atom was 16 times heavier than one hydrogen atom (not 8 times as suggested earlier by John Dalton.)«
This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.