Daily Brain Teasers for Sunday, 15 October 2023
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If cb3c3 + 376b9 = a894c 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 724
NUMBERMANIA: Calculate the number 724 using numbers [5, 7, 9, 4, 32, 586] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
A Smart Response
My wife and I were comparing notes the other day. 'I have a higher IQ, did better on my SAT's, and make more money than you,' she pointed out.
'Yeah, but when you step back and look at the big picture, I’m still ahead,' I said.
She looked mystified. 'How do you figure?'
'I married better,' I replied.
MAGIC SQUARE: Calculate A+B*C
The aim is to place the some numbers from the list (8, 11, 12, 18, 21, 22, 66, 69, 70, 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
Computer 10,000 operations per secondIn 1939, it was said in a memorandum that it would be possible to build a computer with vacuum tubes that would process “10,000 operations per second.” The prediction by Helmut Schreyer came at the time when computers were being built with relays to function electromechanically. He assisted Konrad Zuse in the bulding of the Z2 automatic calculator completed in the same year. The Z2 had 800 relays in the arithmetic and control units, and it also had a mechanical memory.« |
Find number abc
If 2ca9c + 30690 = 59bcc 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 5371
NUMBERMANIA: Calculate the number 5371 using numbers [9, 5, 7, 6, 33, 370] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If b7c07 + 6acba = 11cbac 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 1384
NUMBERMANIA: Calculate the number 1384 using numbers [9, 9, 7, 4, 27, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
