Daily Brain Teasers for Sunday, 12 January 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If b1bc1 + 448aa = 761c1 find number abc. Multiple solutions may exist.
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.
Calculate the number 1443
NUMBERMANIA: Calculate the number 1443 using numbers [2, 4, 5, 8, 22, 233] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Irish Tradition
Patrick walks into a bar in Dublin, orders three pints of Guinness and sits in the corner of the room, drinking a sip out of each pint in turn. When he had finished all three, he went back to the bar and ordered three more.
The barman says, “You know a pint goes flat soon after I pull it . Your pints would taste better if you bought one at a time.”
Patrick replies, “Well now, I have two brodders, one is in America and de odder in Australia and here I am in Dublin . When we all left home, we promised dat we'd drink dis way to remember de days we all drank togedder.”
The barman admits that this is a nice custom and says no more.
Patrick becomes a regular customer and always drinks the same way … ordering three pints and drinking a sip out of each in turn, until they are finished. One day, he comes in and orders just two pints. All the other regulars in the bar notice and fall silent. When he goes back to the bar for the second round, the barman says, "I don't want to intrude on your grief but I wanted to offer my condolences on your great loss." Patrick looks confused for a moment, then the penny drops and he starts to laugh, “Oh no,” he says,
Bejesus, everyone is fine! Tis me … I've quit drinking!”
MAGIC SQUARE: Calculate A*B+C
The aim is to place the some numbers from the list (14, 16, 25, 29, 31, 40, 68, 70, 77, 79, 81) 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.
Johan August ArfwedsonBorn 12 Jan 1792; died 28 Oct 1841 at age 49.Swedish chemist who discovered lithium (1817) in a compound in the mineral petalite, though he was unable isolate it as metal. That required electrolysis with stronger batteries than he had available. (The separation was eventually accomplished by Davy.) Arfwedson abandoned scientific endeavour to spend his time running his family's manufactories and mines that he inherited. Petalite is now known to be lithium aluminium silicate.« |
Find number abc
If 4cc58 + 64c5a = bb4cbb find number abc. Multiple solutions may exist.
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.
Calculate the number 2234
NUMBERMANIA: Calculate the number 2234 using numbers [2, 8, 2, 9, 70, 181] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If 6bc3a - 6a263 = 2bb1 find number abc. Multiple solutions may exist.
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 731
NUMBERMANIA: Calculate the number 731 using numbers [7, 7, 2, 5, 64, 795] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.