Monthly Archive - April 2015brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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 1141NUMBERMANIA: Calculate the number 1141 using numbers [5, 5, 3, 9, 55, 631] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
The dorm rules
On the first day of college, the Dean addressed the students, pointing out some of the rules:
"The female dormitory will be out-of-bounds for all male students, and the male dormitory to the female students. Anybody caught breaking this rule will be fined $20 the first time."
He continued, "Anybody caught breaking this rule the second time will be fined $60. Being caught a third time will cost you a fine of $180. Are there any questions?"
At this point, a male student in the crowd inquired: "How much for a season pass?"