Daily Brain Teasers for Friday, 14 November 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 5140
NUMBERMANIA: Calculate the number 5140 using numbers [2, 6, 1, 7, 12, 648] 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 (7, 8, 9, 16, 26, 27, 31, 32, 34, 39, 78) 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 abc2b + 77c2a = c3a2a3 find number abc. Multiple solutions may exist.
#brainteasers #math
Lottery win
Two Irishmen had just won $500,000 in a lottery.
Having a pint in a pub Tim say to Sean, "What about all them beggin letters? "
Sean replies, "We'll just keep sending them."
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
First U.S. street carIn 1832, the first street car to be used in the U.S. took its initial trip with municipal officals in New York City. It was named the John Mason, after the prominent New York banker who founded the service, who had it built by John Stephenson's company. The carriage was horse-drawn and rode on iron wheels along iron rails laid in the middle of the road. The track ran along Fourth Avenue from Prince Street to 14th Street. The carriage had three non-connecting compartments, each able to carry ten passengers. Public transportation began on 26 Nov 1832 for a fare of 12-1/2 cents. Although horses had previously been used to haul trains on railroad tracks, this was the first horse-drawn street-car.[Image: Front compartment (of three) on John Mason street car.] |
Calculate the number 5454
NUMBERMANIA: Calculate the number 5454 using numbers [9, 1, 9, 9, 36, 561] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If bbcaa + 3c32c = 9747b 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 7406
NUMBERMANIA: Calculate the number 7406 using numbers [2, 8, 4, 4, 82, 845] 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 (12, 13, 14, 18, 19, 22, 27, 57, 58, 66) 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 abbc4 - abc70 = 2b4 find number abc. Multiple solutions may exist.
#brainteasers #math
