Daily Brain Teasers for Tuesday, 03 September 2024
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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.
Calculate the number 2147
NUMBERMANIA: Calculate the number 2147 using numbers [8, 4, 7, 9, 63, 679] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If cbc94 + b28ba = a405c5 find number abc. Multiple solutions may exist.
The Ultimate Computer
The Ultimate Computer stood at the end of the Ultimate Computer Company's production line. At which point the guided tour eventually arrived.
The salesman stepped forward to give his prepared demo. 'This,' he said, 'is the Ultimate Computer. It will give an intelligent answer to any question you may care to ask it.'
A smart-aleck who ran a humor mailing list stepped forward and asked, 'Where is my father?'
There was the soft hum of powerful electronic gear going to the task. Panel lights lit and blinked, and within a couple of seconds the laser printer printed out a piece of paper: 'Fishing off Florida.'
The smart-aleck laughed, 'Actually, my father is dead! It was a trick question.'
The salesman, quickly thinking on his feet, replied that he was sorry the answer was unsatisfactory, but as the Ultimate Computer was precise, perhaps a rewording of the question might work better.
The smart-aleck said to the Ultimate Computer, 'Where is my mother's husband?' Again, the hum of the powerful electronic brain filled the room.
After a moment, the laser printer whirred to life. The paper said, 'Dead. But your father is still fishing off Florida.'
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.
Gregorian CalendarIn 1752, the day of 3 Sep never happened in Britain, nor the next 10 dates. The Roman era Julian Calendar, had become 11 days out of step from the solar cycle.Britain and its American colonies adopted the Gregorian Calendar, which moved this day's date up from Sep 3 to Sep 14. People rioted in the streets thinking the government stole 11 days of their lives. Instituted by Pope Gregory XIII in 1582, the calendar has 365 days with an extra day every four years (the leap year) except in years divisible by 100 but not divisible by 400. Thus, the calendar year has an average length of 365.2422 days. Some other countries, including Russia, did not change until the twentieth century.« |
Calculate the number 2421
NUMBERMANIA: Calculate the number 2421 using numbers [2, 7, 9, 8, 97, 785] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
MAGIC SQUARE: Calculate A*B-C
The aim is to place the some numbers from the list (2, 5, 7, 11, 14, 16, 46, 49, 51, 65, 80) 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.
Find number abc
If 5ac8b - bab74 = a0708 find number abc. Multiple solutions may exist.
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.
Calculate the number 9071
NUMBERMANIA: Calculate the number 9071 using numbers [9, 9, 2, 9, 58, 928] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Find number abc
If a3a79 + b90cc = c52a90 find number abc. Multiple solutions may exist.
