Daily Brain Teasers for Monday, 24 June 2024
|
puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Calculate the number 873
NUMBERMANIA: Calculate the number 873 using numbers [5, 8, 8, 7, 15, 823] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 88a4c - 29634 = c84bb 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
There's a glass and a half of...
There's a glass and a half of milk in each Cadbury chocolate block. I'm okay with the milk, it's the glass that worries me.
Calculate the number 2508
NUMBERMANIA: Calculate the number 2508 using numbers [3, 8, 4, 9, 87, 328] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Comet spectrumIn 1881, Sir William Huggins made the first photographicspectrumthe first photographic spectrum of a comet (1881 III) and discovered the cyanogen (CN) emission at violet wavelengths. (This fact caused near mass hysteria 29 years later as the Earth passed thru the tail of Halley's Comet and some persons worried about the effect of this for life on Earth.) The first spectroscopic observations of comets were made made by Giovanni Donati (1864) and by Huggins in 1868 when he visually compared the spectrum of comet Winnecke (1868 II) with flame spectra and found that the bands seen in the comet and in the flame, now known as the “carbon”or “Swan Bands”were similar. Spectroscopy soon became the standard technique for studying the light of comets.[Ref: W. Huggins, "Preliminary Note on the Photographic Spectrum of Comet b, 1881," Proceedings of the Royal Society 33 (1881): 1-3.] |
MAGIC SQUARE: Calculate A*B*C
The aim is to place the some numbers from the list (2, 7, 8, 10, 13, 28, 29, 31, 39, 40, 42) 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 bb5c7 - bb09c = a35 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 2768
NUMBERMANIA: Calculate the number 2768 using numbers [3, 8, 1, 3, 28, 673] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If 9ca66 - 39b6b = a13c4 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
