Daily Brain Teasers for Wednesday, 27 August 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 779c9 - 4b5aa = 3c3ab find number abc. Multiple solutions may exist.
#brainteasers #math
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.
#brainteasers #math #numbermania
Find number abc
If ba9cc + a696b = c09b6 find number abc. Multiple solutions may exist.
#brainteasers #math
Bells on Cows
Q: Why do farmers put bells on cows?
A: Their horns don't work.
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
GalliumIn 1875, the element gallium was discovered by P.E. Lecoq de Boisbaudran. In an article in the Annales de Chimie in 1877, he said his search started 15 years earlier, but with inadequate resources. Even with a new laboratory (1863) he had no success until he realized he was using too little material, and in Feb 1874 started with 52 kg of a mineral from Pierrefitte mine. He finally isolated a tiny sample: “On August 27, 1875, between three and four at night, I perceived the first indications of the existence of a new element that I named gallium in honor of France (Gallia).”His first spectroscopic analysis of the tiny amount (he estimated 1/100 mg) of the prepared sample showed a previously unknown violet line at 417.0 indicating a new element. |
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.
#brainteasers #math #numbermania
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.
#brainteasers #math #magicsquare
Find number abc
If cba91 + 13b91 = 9a1ba 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 963
NUMBERMANIA: Calculate the number 963 using numbers [3, 8, 6, 8, 99, 136] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If cab78 - ba3b6 = b99cb find number abc. Multiple solutions may exist.
#brainteasers #math
