Daily Brain Teasers for Sunday, 20 October 2024
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 9ab6c - a56c6 = 21a18 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 7263
NUMBERMANIA: Calculate the number 7263 using numbers [5, 5, 4, 6, 69, 561] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Memorial Day
Memorial Day
MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (6, 7, 9, 10, 15, 18, 19, 28, 31, 32, 38, 96) 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
CompotypeIn 1925, the compotype was patented by its inventor, Clifton Chisholm of Cleveland, Ohio, as an "Embossing Machine" (U.S. No. 1,557,754). The keyboard-controlled machine embossed one line of characters on an aluminum strip with flanged edges. These could be arranged in a holder for several strips in parallel from which several lines of printed material could be produced. Blanks came from a ribbon of metal on a roll, automatically flanged to give a mounting channel shape, and fed between embossing dies. Each character was also printed on a record card, visible during operation. The machine was designed to provide an efficient mechanism for the rapid production of the embossed strips. The patent was assigned to the Multigraph Sales Co. of the same city. |
Find number abc
If c42a9 + b0b1b = 11489c 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
Calculate the number 7456
NUMBERMANIA: Calculate the number 7456 using numbers [6, 6, 8, 3, 52, 609] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If bbb55 + 795a6 = 101ac1 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
Calculate the number 307
NUMBERMANIA: Calculate the number 307 using numbers [6, 2, 6, 5, 37, 193] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
