[Tfug] [OT] A good brainteaser to flex your sad and flabby hacker brain muscles.

[lukkystarr at excite.com]

I believe they give you an hour because 1. you need some time to figure it out, and 2. to be certain you know which is which, the first switch should be flipped a good while so there is no question which was burning when you turn it off, flip another on, and open the lid.  I would go with at least 5 minutes, because you don't know what kind of light bulbs they are, so you would have no idea how long it would take them to heat up.  So, only one switch is needed before you open the lid because when you do, one will be hot, one cold, and one lit.









 --- On Tue 04/10, Terence Rudkin < trudkin at gmail.com > wrote:

From: Terence Rudkin [mailto: trudkin at gmail.com]

To: tfug at tfug.org

Date: Tue, 10 Apr 2007 09:14:07 -0700

Subject: Re: [Tfug] [OT] A good brainteaser to flex your sad and flabby	hacker brain muscles.



Flip on two switches, wait 30 sec.  Switch one off.The light that is on is the on switch. the light that is off but hot is theswitch that was toggled both on and off.  The cold one is on the un touchedswitched.TROn 4/10/07, Bowie J. Poag <bpoag at comcast.net> wrote:>>> Lets see how long it takes you guys to figure this one out. :)>>> Hack This Box> ---------------->> You interview for a job at a local software engineering firm... Their> interviewer, a Unix admin (of course!), walks into the room and places a> strange looking box covered with signatures and times on the table> infront of you.>> He smiles at you and says, "This is a completely sealed, water-tight,> air-tight, and light-tight wooden box. It has three switches on the> outside that control three light bulbs on the inside. You're only> allowed to flip the switches while the lid is closed. If you open the> lid, you're not allowed to touch any of the switches ever again. How can> you tell which switch controls which 
bulb? If you can figure this out,> you'll get the job. If not, well....good luck in your future endeavors,> kid. You've got one hour. Incidentally, all those signatures and times?> They're from everyone who's gotten a job here.">> ( Note: This is NOT a trick question--Yes, the box has power, and yes,> the lightbulbs are screwed in, etc. There are at least two valid answers.> )>>> Bowie J. Poag, 17 minutes 5 seconds. :)>> _______________________________________________> Tucson Free Unix Group - tfug at tfug.org> Subscription Options:> http://www.tfug.org/mailman/listinfo/tfug_tfug.org>_______________________________________________Tucson Free Unix Group - tfug at tfug.orgSubscription Options:http://www.tfug.org/mailman/listinfo/tfug_tfug.org

_______________________________________________
Join Excite! - http://www.excite.com
The most personalized portal on the Web!