Daily Brain Teasers for Tuesday, 21 April 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
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 2598
NUMBERMANIA: Calculate the number 2598 using numbers [3, 3, 7, 5, 55, 643] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If c9abc - c4035 = 5a4a find number abc. Multiple solutions may exist.
#brainteasers #math
Ed and Ted met for the first t...
Ed and Ted met for the first time in twenty years. "So, how's life been for you?" Ed asked.
"Not too good," Ted replied. "My first wife died of cancer, my second wife turned out to be a lesbian and ran off with another woman and took all our savings, my son's in prison for trying to kill me, my daughter got run over by a bus, my house was hit by a low-flying aircraft, my vintage car rolled off the dockside into the sea, I had to have my dog put down recently, my doctor says that I have an incurable disease and to cap it all my business has just gone bust."
"Oh dear, that sounds terrible." Ed said. "What business were you in?"
"I sell lucky charms," said Ted.
"Not too good," Ted replied. "My first wife died of cancer, my second wife turned out to be a lesbian and ran off with another woman and took all our savings, my son's in prison for trying to kill me, my daughter got run over by a bus, my house was hit by a low-flying aircraft, my vintage car rolled off the dockside into the sea, I had to have my dog put down recently, my doctor says that I have an incurable disease and to cap it all my business has just gone bust."
"Oh dear, that sounds terrible." Ed said. "What business were you in?"
"I sell lucky charms," said Ted.
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
Samuel SlaterDied 21 Apr 1835 at age 66 (born 9 Jun 1768).English-American mechanical engineer who founded the American cotton-textile industry. Before he left Nottingham and immigrating to the U.S. in 1789, Slater apprenticed with Jedediah Strutt (partner of Richard Arkwright) in England. Once in the U.S., he found backing to build Arkwright's spinning and carding machinery, with which he established the first successful cotton mill in the U.S. in Pawtucket, Rhode Island, as well as many others in the New England region. |
Calculate the number 687
NUMBERMANIA: Calculate the number 687 using numbers [7, 6, 6, 8, 19, 125] 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 (18, 19, 20, 21, 22, 28, 29, 54, 56, 63, 72) 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 a6c46 - b4aa2 = 8bc54 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 1265
NUMBERMANIA: Calculate the number 1265 using numbers [7, 1, 5, 6, 55, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 68cc8 + 4ab95 = ba85cc find number abc. Multiple solutions may exist.
#brainteasers #math
