Daily Brain Teasers for Wednesday, 21 January 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If c0490 - b8aab = 21a1a 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 3490
NUMBERMANIA: Calculate the number 3490 using numbers [1, 6, 9, 8, 42, 316] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 97ccb - a5b79 = 7b8aa find number abc. Multiple solutions may exist.
#brainteasers #math
Jumbo JetIn 1970, the first wide body jet was put into service as the Pan American Airways Boeing 747 flew its first flight between from New York's John F. Kennedy Airport and Heathrow Airport in London, England. This "jumbo jet" had a cabin almost twice as wide as a 707 and a length of 231 feet. The cockpit and first-class section were above the first floor of passengers. With the ability to carry more than 400 passengers more than 5,500 miles, the 747 opened up economic long-distance travel to the masses. |
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 3468
NUMBERMANIA: Calculate the number 3468 using numbers [9, 1, 8, 9, 21, 273] 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 (9, 10, 11, 15, 16, 17, 28, 29, 30, 74, 82) 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 ba4ba + b614c = 495c0 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 9399
NUMBERMANIA: Calculate the number 9399 using numbers [2, 8, 7, 4, 99, 901] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
