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Ok , here is a nice math problem :
Suppose we have one room .How many people must must enter the room so that : the probability that at least two of the persons inside are born on the same date , is not less than 0.5 ?
"Success is the ability to go from one failure to another with no loss of enthusiasm." - W.Churchill
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Good old one 
well the quick answer is 23
because In a group of 23 people, at least two have the same birthday with the probability higher than 1/2.
because (364/365)·(363/365)·...·(343/365) = .493 and
1 - .493 = .507
does it need any explaination
"Not everything that counts can be counted..."
-Albert Einstein
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Puzzle Of The Day
The chances of a tossed coin falling head or tails is almost 50-50 with an extremely small chance of it falling on its edge. Therefore what should be the dimensions of a coin that has a probability of 1/3 to fall heads, 1/3 to fall tails, and 1/3 on its edge?
What is one supposed to do after reading this, You could of course pretend you haven’t read it but then who would know you didn’t?
The problem with these kind of problems is they look so easy and will stick to your mind till you get an answer
^[^]
"Not everything that counts can be counted..."
-Albert Einstein
-- modified at 15:46 Sunday 19th March, 2006
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A 9 digit number which is a perfect square consist of the digits 1 - 9 in some order.
One chance = > exchange the positions of two of them. In three chances the number should look like 123456789. What is this number? Interesting ????
What? What did you say ? Why do I write? Simple, because the human factor here is loser takes all. Nice, no? Your call.
"Not everything that counts can be counted..."
-Albert Einstein
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lets see ....
A Cpian puts 10,000 dollar in a Weekly trading scheme.
-> About half the time, He makes an 80% gain.
-> The other half, he makes a 60% loss.
One year later, how much money he will have?
a> 1.95
b> 14,000
c> 140,000
d> 1.4 Million
e> 131 Million
f> I don't want to answer and the question sucks
No Marks without explaination
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My first article^
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I calculate it as:
26 * 1.8 * 10000 + 26 * .4 * 10000 but that's nowhere near one of the options.
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Ok i am back, with some more mind toppling puzzles
To strengthen the genius in you on a boring friday and for some of you to ponder in the weekend.
You are a programmer turned mad scientist,
and decide to have a Party ONE MONTH from today.
-> You have one thousand bottles of wine
-> You suddenly discover that one of them is poisoned.
-> The poison takes a LITTLE LESS THAN a month to take effect.
-> You have a LOTS of lab mice at your disposal.
-> What is the SMALLEST number of mice that must drink from the
bottles to find the poisoned one?
Hint, hint: It’s a hint
So What could be a GOOD RESPONSE for this
a Give the right answers in a legit form of the English language
b Give wrong answers that sound better than any stupid right answer
^[^]
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My first article^
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What is the optimum size of a team in a project
So that if we add more members , they do not contribute productivity
equivalent to the percentage increase in the staff size ?
AND WHY ?
^[^]
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My first article^
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You and me decide to play a game.
Starting with me,
we placed a "+" or "-" sign in front of any number from 1 to 20
1, 2, 3...18, 19, 20
After all 20 numbers have been signed,
I will pay* you in dollars, Math.Abs(value of the sum)
So you have to tell me the best strategy to make the maximum amount of money when the game ends
example i put a "+ sign before 3
1, 2, 3...18, 19, 20
becomes
1, 2, +3...18, 19, 20
then its your chance you put a minus sign before say 15
1, 2, +3...18, 19, 20
becomes
1, 2, +3..-15, 16, 17, 18, 19, 20
again its my chance
And so on...
So guys if you want your name in the print, here is your chance
* disclaimer: No actual money involved, Come on be a sport
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My first article^
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okay it depends who goes first.
If you go first - then I should use the same symbol as you with the largest number available and continue to use that symbol thereafter with the largest number available.
If I go first then I should choose a symbol and place that in front of the largest symbol and again continue to use that symbol thereafter.
Assuming that we are placing strategically i.e. you are trying to minimise the magnitude on every move and I am trying to increase it.
Then we have the following minimum wins to me
you first
+1+20-19+18-17+16-15+14-13+12-11+10-9+8-7+6-5+4-3+2 = 12
me first
+20-19+18-17+16-15+14-13+12-11+10-9+8-7+6-5+4-3+2-1 = 10
I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it. - pTerrywww.many-monkeys.com
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Can you find the next line?
1
11
21
1211
????
Antoine Marie
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wow  that one was really beautiful
111221 (need any explaination ! )
Sorry to disappoint you but i did GLAT long ago
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Rule # 17: Omit Needless Words - Strunk, William, Jr.
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Correct!
I always liked this one. The funny thing is that you'll get a 3 but never above.
Antoine Marie
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Which letter will come next in the series.
W, L, W, C, N, _
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Rule # 17: Omit Needless Words - Strunk, William, Jr.
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Not a clue.
Antoine Marie
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tHE cLUE iS iN tHE pROBLEM yOU gAVE
Rule # 17: Omit Needless Words - Strunk, William, Jr.
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lets see the question again
Which Letter Will Come Next In The Series. :->
W, L, W, C, N, _
Rule # 17: Omit Needless Words - Strunk, William, Jr.
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All right, tricky one.
Antoine Marie
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it was definetly like your problem, was it not ?
Rule # 17: Omit Needless Words - Strunk, William, Jr.
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Shameless selfplug: Universal DBA | Ajax Rating
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now you are getting the hang of it
Omit Needless Words - Strunk, William, Jr.
Vista? Photoshop Preview Handler here
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Nice for me, what about a new one that differs from those in your blog, in the lounge ?
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Quartz. wrote: WW-DO-TRIC-O-MIN-DO-CO
A series ???, or just explanation ?
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