Sunday, September 19, 2010

Calendar days

If there are 12 months in a year and 7 months have 31 days. How many months have 28 days?

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Monday, July 19, 2010

geometrically insane

The radius of a circle is 10 centimeter. Find the area shaded with green in the picture. (Ignore the width of the borders)
Clue: (Highlight to see below)
Draw two diagonal lines connecting the intersection between two circles to form an X.

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At July 19, 2010 at 11:22 PM , Anonymous Anonymous said...

jake the fake who bake the cake....the blooger

area = PIr2 + 4r2 - PIr2
= 4r2
= 4(10)(10)
= 400 cm2

At July 19, 2010 at 11:24 PM , Anonymous Anonymous said...

sa layton i2 eh! - rhonel

At July 20, 2010 at 12:41 AM , Anonymous Anonymous said...

mangastream na lang gawen mong link sa naruto jake, updated kagad yun kumpara sa onemanga!

At July 20, 2010 at 12:54 AM , Blogger icesnake said...

hoy magtrabaho ka!! or sagutin mo na lang ung ibang teaser ko sa baba!! lol

At July 20, 2010 at 11:06 PM , Anonymous Anonymous said...

is my answer correct Ms. ice snake?

At July 22, 2010 at 2:46 AM , Blogger icesnake said...

Your final answer is correct but your explanation is wrong. I don't know what is 4r2 (four R squared)? What formula is that?

At July 26, 2010 at 9:11 PM , Anonymous Anonymous said...

its 2R times 2R to get the area of the square.
where R = 10cm.

At July 28, 2010 at 8:54 PM , Anonymous Anonymous said...

yung area lang ng square ito diba?

At July 28, 2010 at 10:24 PM , Blogger icesnake said...

This comment has been removed by the author.


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Tuesday, July 6, 2010


You have 5 bags of gems each containing 10 gems. All gems have the same shape and size. Each gem weighs 10 grams so a bag weighs 100 grams. But there is a bag of gem that contains gems with 9 grams (bag weighs 90 grams). You have a weighing scale that can register a maximum of 200 grams. What is the least number of times you could use the scale to find the bag with 9g gems?

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At July 17, 2010 at 7:04 PM , Anonymous Stan said...

nice gems :)
can i put my answer here?

At July 18, 2010 at 7:36 PM , Anonymous icesnake said...

yes you can.

At July 28, 2010 at 8:57 PM , Anonymous Anonymous said...

ano answer? 1 ba?

At July 28, 2010 at 10:25 PM , Blogger icesnake said...

sino ka? pls explain your answer further before I check if it is correct or not.


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Twos to Five

Using ONLY two 2's and any other mathematical functions, operations and/or symbols can you produce the number 5?

Please use white font and warn spoiler for others who want to answer. Tnx.

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At July 6, 2010 at 8:40 PM , Anonymous Anonymous said...


At July 6, 2010 at 8:47 PM , Anonymous Stan said...

mahirap un sagot dito... dpat math genius yata ang sumagot nito e... hehe

At July 7, 2010 at 6:16 AM , Anonymous Anonymous said...

2 + 2 + 2 / 2?

At July 7, 2010 at 6:35 AM , Blogger icesnake said...

Your answer is wrong, use only TWO 2's and pls use WHITE FONT and warn spoilers for others who wants to answer. thanks.

At July 12, 2010 at 2:10 AM , Anonymous Stan said...

how can I make the color of my font white? I can't find where I can change the color so it will not spoil the answer...
I know the answer already


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Thursday, June 24, 2010

brain teaser

3 men were held captive by an Indian tribe and they are positioned as the illustration above. The chieftain showed them 5 headbands, 2 red and 3 white. The 3 men were blindfolded and the chief put a headband on each of their heads, hid two remaining headbands, and removed their blindfolds.
According to the rules any one of the three men could speak first and try to guess his headband color. And if he guessed correctly they passed the test and could go free, if not they failed. It so happened that all 3 men were prominent logicians from a nearby academy. So after a few moments of silence, the first man in the line said: "My headband is ...".
What color was his head band? Why?

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At June 25, 2010 at 12:11 AM , Anonymous Anonymous said...


At June 25, 2010 at 12:17 AM , Blogger icesnake said...


At June 28, 2010 at 5:18 AM , Anonymous drew said...

This comment has been removed by a blog administrator.

At July 5, 2010 at 7:38 PM , Anonymous drew said...

sorry ngiyahahaha


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This is a blog.. I am a blogger. Do you know why I am blogging? because this is about me being a blogger.

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