Daily Brain Teasers for Sunday, 30 November 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If a02b4 + 477c0 = cb7a44 find number abc. Multiple solutions may exist.
#brainteasers #math
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.
#brainteasers #mastermind
Calculate the number 4015
NUMBERMANIA: Calculate the number 4015 using numbers [8, 4, 1, 2, 90, 967] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
But officer...
A police officer in a small town stopped a motorist who was speeding down Main Street.
"But officer." the man began, "I can explain".
"Just be quiet," snapped the officer. "I'm going to let you cool your heels in jail until the chief gets back..."
"But officer, I just wanted to say...."
"And I said to keep quiet! You're going to jail!"
A few hours later the officer looked in on his prisoner and said, "Lucky for you that the chief is at his daughter's wedding. He'll be in a good mood when he gets back."
"Don't count on it," answered the fellow in the cell. "I'm the groom."
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (5, 12, 15, 21, 24, 26, 27, 29, 33, 35) 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.
#brainteasers #math #magicsquare
Nathanael PringsheimBorn 30 Nov 1823; died 6 Oct 1894 at age 70.German botanist who was one of the founders of the science of algology (study of algae). He made important discoveries in the morphology and physiology of plants, especially in the fields of reproduction and evolution. Pringsheim's observation of the formation of plant cells provided support for the belief, opposed by the German botanist Matthias Jakob Schleiden, that cells arise only by division of pre-existing cells. In 1868 Pringsheim and Julius von Sachs were the first to describe the specialized bodies in the cell cytoplasm called plastids. Pringsheim also was the first to demonstrate a case of apospory, (production of a sexual generation from an asexual generation without the intervention of spores), in the Thallophyta (e.g., algae, fungi). |
Find number abc
If 8ccbc + 84aa2 = b64a42 find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind
Calculate the number 3763
NUMBERMANIA: Calculate the number 3763 using numbers [2, 9, 1, 7, 98, 329] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 8abb5 + 5c555 = 1bc000 find number abc. Multiple solutions may exist.
#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.
#brainteasers #mastermind
Calculate the number 9896
NUMBERMANIA: Calculate the number 9896 using numbers [5, 7, 1, 6, 32, 828] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
