BRAIN TEASERS

Daily Brain Teasers for Monday, 11 August 2025

Daily Brain Teasers for Monday, 11 August 2025 puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ...

Calculate the number 1030

NUMBERMANIA: Calculate the number 1030 using numbers [6, 9, 7, 7, 11, 169] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
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#brainteasers #math #numbermania

Find number abc

If a4cb7 + cb877 = 45a84 find number abc. Multiple solutions may exist.
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#brainteasers #math

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.
CHECK ANSWER
#brainteasers #mastermind

How kind you are?

No matter how kind you are,

German children are kinder.

Joke found on reddit, posted by mattsulli in 2016

Photo by Elliot11 Medino on Pixabay

Jokes of the day - Daily updated jokes. New jokes every day.

Calculate the number 2032

NUMBERMANIA: Calculate the number 2032 using numbers [8, 4, 6, 4, 36, 410] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
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#brainteasers #math #numbermania

Enrico Betti

Died 11 Aug 1892 at age 68 (born 21 Oct 1823).Italian mathematician who is noted for his contributions to algebra and topology. His early work is in the area of equations and algebra. He wrote the first rigorous exposition of the theory of equations, previously given without proofs, developed by the noted French mathematician Évariste Galois (1811-32). Betti extended and gave proofs relating to the algebraic concepts of Galois, published in several works from 1851. Betti thus made an important contribution to the transition from classical to modern algebra. He was the first to give a proof that the Galois group is closed under multiplication. Betti also wrote a pioneering memoir on topology, the study of surfaces and space. Betti did important work in theoretical physics, in particular in potential theory and elasticity.

MAGIC SQUARE: Calculate A-B*C

The aim is to place the some numbers from the list (1, 2, 4, 9, 28, 30, 35, 36, 56, 69, 71, 76) 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.
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#brainteasers #math #magicsquare

Find number abc

If c88ca - 37332 = bb5bc find number abc. Multiple solutions may exist.
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#brainteasers #math

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.
CHECK ANSWER
#brainteasers #mastermind

Calculate the number 1204

NUMBERMANIA: Calculate the number 1204 using numbers [6, 4, 2, 6, 64, 240] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
CHECK ANSWER
#brainteasers #math #numbermania

Find number abc

If ca167 + ab0ac = 76b10 find number abc. Multiple solutions may exist.
CHECK ANSWER
#brainteasers #math

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.
CHECK ANSWER
#brainteasers #mastermind
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