Daily Brain Teasers for Wednesday, 24 December 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 6b425 + aca99 = c40224 find number abc. Multiple solutions may exist.
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.
Calculate the number 2085
NUMBERMANIA: Calculate the number 2085 using numbers [2, 6, 5, 6, 87, 790] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Not Afraid
A few minutes before the church services started, the congregation was sitting in their pews and talking. Suddenly, Satan appeared at the front of the church.
Everyone started screaming and running for the back entrance, trampling each other in a frantic effort to get away from evil incarnate. Soon the church was empty except for one elderly gentleman who sat calmly in his pew without moving, seemingly oblivious to the fact that God's ultimate enemy was in his presence.
So Satan walked up to the man and said, 'Do you know who I am?'
The man replied, 'Yep, sure do.'
Aren't you afraid of me?' Satan asked.
'Nope, sure ain't.' said the man.
Don't you realize I can kill you with one word?' asked Satan.
Don't doubt it for a minute, ' returned the old man, in an even tone.
'Did you know that I can cause you profound, horrifying agony for all eternity?' persisted Satan.
Yep,' was the calm reply.
'And you're still not afraid?' asked Satan.
'Nope,' said the old man.
More than a little perturbed, Satan asked, ' Why aren't you afraid of me?'
The man calmly replied, 'Been married to your sister for 48 years.'
Find number abc
If 76a67 - b5a62 = c1aa5 find number abc. Multiple solutions may exist.
Artificial graniteIn 1923, Time magazine described a process using extreme heat and pressure that could make granite and jade artificially within a few hours at the geophysical laboratory of the Carnegie Institution of Washington, D.C. The raw ingredients of the minerals were heated in a small electric furnace to 2,500°F under a pressure gradually increased up to 200,000-psi. Extreme pressure could also inject water into rock resulting in a soft, gelatin-like condition..«[Ref: Time 24 Dec 1923] |
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.
Calculate the number 5172
NUMBERMANIA: Calculate the number 5172 using numbers [1, 6, 4, 2, 45, 816] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (5, 6, 8, 20, 21, 23, 24, 65, 66, 68, 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.
Find number abc
If 1bcca + 4bba5 = cb587 find number abc. Multiple solutions may exist.
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.
Calculate the number 3828
NUMBERMANIA: Calculate the number 3828 using numbers [3, 1, 3, 8, 90, 336] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.