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Monthly Archive - October 2013brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10. |
On which finger will she stop?
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A little girl counts from 1 to 1000 using the fingers of her left hand as follows. She starts by calling her thumb 1, the first finger 2, middle finger 3, ring finger 4, and little finger 5. Then she reverses direction, calling the ring finger 6, middle finger 7, the first finger 8, and her thumb 9, after which she calls her first finger 10, and so on. If she continues to count in this manner, on which finger will she stop? Calculate the number 100
. Each of the numbers can be used only once.','/archive/2013/10/31/225.png','/calculate-number-100/225'))
NUMBERMANIA: Calculate the number 100 using numbers [1, 1, 4, 2, 20, 75] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Find the area of the shaded figure
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Express result to the accuracy of 2 decimal. 
Laying Turf
A painting contractor was speaking with a woman about a job. In the first room, she said she would like a pale blue. The contractor wrote this down and went to the window, opened it, and yelled out "GREEN SIDE UP!" In the second room, she told the painter she would like it painted in a soft yellow. He wrote this on his pad, walked to the window, opened it, and yelled "GREEN SIDE UP!" The lady was somewhat curious but she said nothing. In the third room, she said she would like it painted a warm rose color. The painter wrote this down, walked to the window, opened it and yelled "GREEN SIDE UP!" The lady then asked him, "Why do you keep yelling 'green side up'?"
"I'm sorry," came the reply.
"But I have a crew of blondes laying sod across the street."
Word Association: BOX, INSTRUMENT, GENRE, SOUND
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Word Association: BOX, INSTRUMENT, GENRE, SOUND 
Which number should replace the question mark?
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FUNNY MATH: Which number should replace the question mark? Word Association: FAST, SOUL, ORGANIC, CHINESE
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Word Association: FAST, SOUL, ORGANIC, CHINESE Which number should replace the question mark?
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FUNNY MATH: Which number should replace the question mark? Calculate 9*(29+321+151)
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FUNNY MATH: Calculate 9*(29+321+151) :) Find the right combination
. 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.','/archive/2013/10/28/213.png','/find-right-combination/213'))
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. Find the area of the shaded figure
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Express result to the accuracy of 2 decimal. 
