Daily Brain Teasers for Tuesday, 13 May 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 1489
NUMBERMANIA: Calculate the number 1489 using numbers [9, 3, 8, 5, 51, 835] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If a5abc + 302ca = 12b213 find number abc. Multiple solutions may exist.
#brainteasers #math
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
Sewing machine lampIn 1873, Ludwig M. Wolf of Avon, CT, patented the sewing machine lamp holder (No. 138,831). It was introduced by the Singer Sewing Machine Co. in 1876, to meet the need of those who wished to sew at night, because the lamp would not "jar off the table or upset," and it could be moved "without soiling the fingers." |
Calculate the number 1090
NUMBERMANIA: Calculate the number 1090 using numbers [6, 6, 4, 8, 25, 155] 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 (17, 20, 21, 24, 26, 27, 28, 33, 38, 41, 42, 93, 98) 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 a6b2b + 77797 = c3b22c 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 241
NUMBERMANIA: Calculate the number 241 using numbers [4, 4, 8, 5, 42, 400] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If b4a4a - 8ca37 = 8008 find number abc. Multiple solutions may exist.
#brainteasers #math
