Daily Brain Teasers for Saturday, 20 December 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 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.
#brainteasers #math #numbermania
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.
#brainteasers #math #magicsquare

Scary Collection 07
A witch joke
Why did the stupid witch keep her clothes in the fridge?
She liked to have something cool to slip into in the evenings!
A cannibal joke
What happened when the cannibals ate a comedian?
They had a feast of fun!
A ghost joke
What do you call a ghost's mother and father?
Transparents!
A vampire joke
Who plays centre forward for the vampire football team?
The ghoulscorer!
A witch joke
Why did the witch give up fortune telling?
There was no future in it!
A Halloween joke
Why was everyone tickled by the fried chicken at the Halloween party?
Because the feathers were still on the chicken!
A witch joke
What did the doctor say to the witch in hospital?
With any luck you'll soon be well enough to get up for a spell!
Why did the stupid witch keep her clothes in the fridge?
She liked to have something cool to slip into in the evenings!
A cannibal joke
What happened when the cannibals ate a comedian?
They had a feast of fun!
A ghost joke
What do you call a ghost's mother and father?
Transparents!
A vampire joke
Who plays centre forward for the vampire football team?
The ghoulscorer!
A witch joke
Why did the witch give up fortune telling?
There was no future in it!
A Halloween joke
Why was everyone tickled by the fried chicken at the Halloween party?
Because the feathers were still on the chicken!
A witch joke
What did the doctor say to the witch in hospital?
With any luck you'll soon be well enough to get up for a spell!
Find number abc
If 1bcca + 4bba5 = cb587 find number abc. Multiple solutions may exist.
#brainteasers #math
Ambroise ParéDied 20 Dec 1590 (born 1510). French physician, one of the greatest surgeons of the European Renaissance, known as the "father of modern surgery" for his many innovations in operative methods. While an army surgeon, he introduced the method of treating wounds by ligature of arteries instead of cauterisation with red-hot irons or boiling oil. Paré also invented prostheses. "Le Petit Lorrain" was a hand, operated by springs and catches, for a French Army Captain, which he then used in battle. Paré also invented a kneeling peg leg and foot prosthesis. It had an adjustable harness, knee lock control, and other engineering features used today. He was surgeon to Henry II and his three successors. He wrote books on anatomy, surgery, plague, obstetrics, and deformities.« |
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 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.
#brainteasers #math #numbermania
Find number abc
If 4c7b7 - c7ca2 = b4b5 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 3992
NUMBERMANIA: Calculate the number 3992 using numbers [5, 4, 5, 5, 85, 898] 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 (13, 16, 20, 22, 23, 25, 26, 29, 30, 62, 92) 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