Tough one

The warden of a prison meets 23 new prisoners when they arrive. He tells them, "You may meet today and plan a strategy. But after today, you will be in isolated cells and will have no communication with one another.

"In the prison is a switch room, which contains two light switches labeled 1 and 2, each of which can be in either up or the down position. I am not telling you their present positions. The switches are not connected to anything.

"After today, from time to time whenever I feel so inclined, I will select one prisoner at random and escort him to the switch room. This prisoner will select one of the two switches and reverse its position. He must flip one switch when he visits the switch room, and may only flip one of the switches. Then he'll be led back to his cell.

"No one else will be allowed to alter the switches until I lead the next prisoner into the switch room. I'm going to choose prisoners at random. I may choose the same guy three times in a row, or I may jump around and come back. I will not touch the switches, if I wanted you dead you would already be dead.

"Given enough time, everyone will eventually visit the switch room the same number of times as everyone else. At any time, anyone may declare to me, 'We have all visited the switch room.'

"If it is true, then you will all be set free. If it is false, and somebody has not yet visited the switch room, you will all die horribly. You will be carefully monitored, and any attempt to break any of these rules will result in instant death to all of you"

What is the strategy they come up with so that they can be free?

My revenge on the previous puzzle

Acting on an anonymous phone call, the police raid a house to arrest a suspected murderer. They don't know what he looks like but they know his name is Jack and that he is inside the house. The police bust in on a carpenter, a lorry driver, a mechanic and a fireman all playing poker. Without hesitation or communication of any kind, they immediately arrest the fireman. How do they know they've got their man?

A Simple question!

Hi....

First Of all i must say u that the question given below is not a question of IIT level....or AIEEE level....or your state Entrance exam level...or the CBSE level....or class 5 level........Itz very very easy......And i am not underestimating u guyz...but the fact is that i liked this question very much(There is some reason for that)....i'll tell u later....n remember to post the answer in the Shout Box!!!

Best of Luck ..............
IF
1 = 5
2 = 25
3 = 125
4 = 625
5 = ?


Think.......

Gujjars?

Guys, i know some of you will bash me for this...........for coming up with something so obvious on a site thats supposed to be 'kind of' intellectual. But let me assure you, i tried to pull off many times before sitting down to write it.
About ten days ago, i had never heard of the group of people called gujjars(probably, not many of you had either) and now they are all over the news channels(OK, the news people are known for highlighting the bad things more than the good ones - imagine seeing kvpy fellows on the front page of the newspaper........and now imagine seeing mr.telgi there- lets not take this further), ya....i was talking about the gujjars, or probably in a much larger sense about reservations. The basic purpose behind the agitations, the nationwide protest is not to get them reservations, but to remove them from the OBC category and put them into the ST category, sounds funny to hear that a backward class could gather so much support to burn buses and block roads.
OK, now before this turns into a news report, i'll come to the point. Just as the whole scene about reservations in iit has kind of initiated this revolt by a small section of our society(not small, if we go by the areas they are trying to destroy), there is a possibility that with the politicians looking to fan the feelings of caste division, this idea may travel places and a lot more of the local leaders may come up with similar demands. But before i sign off, i must appreciate Mr.Arjun Singh for his efforts and look - they are paying off beautifully. It seems quite obvious now, what his motives and his vision for India is like, and unless something really dramatic happens(like a young powerful PM(waise, 50 is young by IST) or something) my heart feels a little sad that things are not looking very bright for our country.

With all that useless talk having gone into your heads, I think the next time i post, it will surely be something more interesting and informative.....probably something on computer science.
Bye

KVPY Bangalore Photo!

(NOTE: Click on the pic for a normal enlarged pic.)

Ok, curse me for taking so long, but its HERE!. As you can see, our group is quite a bit larger than yours (Nyah nyah!), and a lot of these guys are seniors (BSc dudes/dudettes). Now, I shall identify some people here.
Teachers/Student Aides:
They start from the middle 2nd row:
Red shirt: Anil Sir, really really nice guy. Coordinated the whole event.
?
The one and only Dipanker Chatterjee! Also an amazing person
?
?: I believe she is in the Bio department.
?,?,?,?
Girl with a light blue shirt and jeans: A very nice, and interesting student aide. She works in the Ecology department, and I believe she's doing a lot of interesting work relating to elephant conservation. She actually does her work on field. Also, she gave an amazing presentation on circadian rhythms in bugs, and their various calls.
There were several other very nice aides, but not in the picture apparently.

Students:
Guy on right edge, with a grey and red shirt, wearing a bag: ME!!!
Guy on my left: ? but he's a senior. We had an interesting conversation on relativity and laser cooling I think, along with the guy on the top row, 2nd from left (crossed arms).
Guy on bottom row, 3rd from right, light colored clothes and bag: Chinmaya (tagged: super smart cool dude)
Guy on top row, 4th from left, with "Dhoni" hair, and NO bag: Dinesh (tagged: also awesome guy)
Guy on bottom row, from 5th from right leftwards Amol, (guy who went to IMO national camp), Sisir
Guy on bottom row, 2nd from left: Atheendra
Guy on 2nd row, 4th from left, blue shirt: Ramkumar
Guy on 2.5th row, 3rd from right (beside Ramkumar), black shirt: Venugopal
Guy on top row, middle with a Google Code Jam shirt: ? senior who went to the National camp for Indian Informatics Olympiad.


That constitutes all of my memory. As you can see, I don't know many girls there, but if you were on that pic, you are constitutionally granted to come and: a) tell me so I can put that in, b) kick me, next time we meet.