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Monthly Archive - December 2013 (page 3)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30. |
Find the area of the shaded figure
Express result to the accuracy of 3 decimal. 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 4285
NUMBERMANIA: Calculate the number 4285 using numbers [3, 6, 8, 5, 75, 356] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
The magician and the parrot
A magician was working on a cruise ship in the Caribbean. The audience would be different each week, so the magician allowed himself to do the same tricks over and over again.
There was only one problem: The captain's parrot saw the shows every week and began to understand what the magician did in every trick. Once he understood that, he started shouting in the middle of the show.
"Look, it's not the same hat!" "Look, he's hiding the flowers under the table!" "Hey, why are all the cards the Ace of Spades?"
The magician was furious but couldn't do anything, it was the captain's parrot after all.
One day the ship had an accident and sank. The magician found himself on a piece of wood, in the middle of the ocean, and of course the parrot was by his side.
They stared at each other with hate, but did not utter a word. This went on for several days.
After a week the parrot finally said, "Okay, I give up. What'd you do with the boat?"
Calculate axb
Determine the pattern, and calculate axb. CINEMANIA: Guess the movie title
A man and his son search for a stolen ******* vital for his job. Film was made in 1948. 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 5006
NUMBERMANIA: Calculate the number 5006 using numbers [4, 9, 6, 5, 31, 486] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Word Association: GREEN, SMART, BUSINESS, PLAYING
Word Association: GREEN, SMART, BUSINESS, PLAYING Find the area of the shaded figure
Express result to the accuracy of 3 decimal. Calculate axbxc
Determine the pattern, and calculate axbxc.