Daily Brain Teasers for Tuesday, 18 February 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
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 1005
NUMBERMANIA: Calculate the number 1005 using numbers [2, 9, 6, 7, 19, 972] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 7a1b7 - c214a = c8a27 find number abc. Multiple solutions may exist.
#brainteasers #math
Dictionary and thesaurus
“After he bought a dictionary and thesaurus his life became more meaningful.”
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
IsotopeIn 1913, chemist Frederick Soddy introduced the term “isotope.” Soddy was an English chemist and physicist who received the Nobel Prize for Chemistry in 1921 for investigating radioactive substances. He suggested that different elements produced in different radioactive transformations were capable of occupying the same place on the Periodic Table, and on 18 Feb 1913 he named such species “isotopes” from Greek words meaning “same place.” He is credited, along with others, with the discovery of the element protactinium in 1917. |
Calculate the number 531
NUMBERMANIA: Calculate the number 531 using numbers [2, 2, 6, 3, 50, 139] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B*C
The aim is to place the some numbers from the list (15, 16, 20, 21, 23, 28, 61, 62, 64, 69, 97) 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
Find number abc
If 962ac + 82bbc = ca8ac2 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 408
NUMBERMANIA: Calculate the number 408 using numbers [8, 4, 8, 8, 81, 864] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If bab7b - caca1 = 505c7 find number abc. Multiple solutions may exist.
#brainteasers #math
