Daily Brain Teasers for Saturday, 19 September 2026
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
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 4343
NUMBERMANIA: Calculate the number 4343 using numbers [4, 9, 4, 4, 52, 535] 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, 14, 15, 16, 21, 29, 62, 63, 69, 75) 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
Pilot: Have you ever flown in ...
Pilot: Have you ever flown in a small plane before?
Passenger: No, I have not.
Pilot: Well, here is some chewing gum. It will help to keep your ears from popping.
Pilot (after the plane landed): Did the gum help?
Passenger: Yep. It worked fine. The only trouble is I cant get the gum out of my ears.
Passenger: No, I have not.
Pilot: Well, here is some chewing gum. It will help to keep your ears from popping.
Pilot (after the plane landed): Did the gum help?
Passenger: Yep. It worked fine. The only trouble is I cant get the gum out of my ears.
Find number abc
If 89bc0 - ca10b = bba2b find number abc. Multiple solutions may exist.
#brainteasers #math
William HoweDied 19 Sep 1852 at age 49 (born 12 May 1803).American inventor who pioneered in the design of truss bridges for the developing railroads. His first bridge (1838-39) was a light, cheap and substantial structure across the Quaboag River at Warren, Mass., for the Boston and Albany Railroad. His truss patent (3 Aug 1840), was for a frame of top and bottom horizontal timber members, with diagonal wooden braces under compression, tied by vertical wrought-iron rods under tension. By 1842, he had spanned the Connecticut River with a truss bridge. In 1846, he patented a stronger truss. Although offered the job of superintendent of the structural work on a railroad in Russia between St. Petersburg and Moscow, he sent a substitute. His invention brought him fame and fortune, but he died at age 49. He was the uncle of Elias Howe who invented a sewing machine.« |
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 670
NUMBERMANIA: Calculate the number 670 using numbers [3, 2, 3, 3, 55, 560] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 8b3ba - aca1b = 106c2 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 806
NUMBERMANIA: Calculate the number 806 using numbers [3, 3, 2, 9, 81, 720] 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 (2, 4, 7, 8, 9, 13, 21, 23, 27, 59, 79, 95) 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
