An Eternal Quest for Incremental Improvement
There are ten coin machines. Each machine produces coins that weigh 10 g, expect one faulty machine which produces coins that weigh 9 g. You are given with an electronic weighing scale. You can take any number of coins from any machine and use the weighing scale. What would be ...
I had to connect to a Cisco 3000 VPN gateway for establishing a VPN with my office network. Cisco provides VPN clients for Microsoft Windows and RPMs for Linux. I am basically a Debian user. When I tried alien for converting the RPM into deb file and installing it, the ...
In the period of 8 months stay in Bangalore, it makes me to feel sick that we spend a lot of money to dine out still spoil the health. Most of the time, we don't like the taste of the food here. After much thought, we have finally decided ...
You have sixteen coins. One of them is a counterfeit, and the other fifteen are genuine, but identical in appearance to the counterfeit. The counterfeit's weight is different from that of a genuine coin, but you don't know if the counterfeit is heavier or lighter than a genuine ...
The complete migration of the site to a new host is over. Here are the new changes that are done to the site.
Journal: The URI of the journal is changed. http://journal.praveen.ws is the new URI for the journal. The old URI may still take you here ...
Had to migrate the site to a new server again due to unavoidable reasons. Comments after this point until notified further will be lost. Sorry about the inconvenience!
The planet Pfooey is inhabited by robots. Half of the robots always tell the truth, but the other half have been affected by a bug in their software that causes them to lie at all times. All of the robots look exactly alike, so it can be confusing to figure ...
There are three bags. First bag has 2 black balls, second one has 2 white balls and the third has a black ball and white ball. The labels for the bags are prepared as 2B, 2W and BW respectively. While fixing the labels, they were intentionally wrongly placed in all ...
If you had only one match and entered a cold and dark room, where there were a fire place, an oil lamp and a candle, which would you light first?
You are driving by car to a particular destination, and our only assumption is that you are free to drive at any speed you choose - no traffic jams or anything like that. For the first half of the journey (and by half we mean half the overall distance between the ...