My interview was scheduled at 2:00pm.I was made to wait till 3.30.And not even single person came and told that its gonna be late.I had search for water & loo.One great person came and gave 3 puzzles and went way told he will be back after 30 minutes.He came back at 4.30 :).In between i had to vacate the meeting room because other employees of the company wanted to use the room(Pathetic) :). He was expecting answer whatever he knew.He was not ready to listen. Questions: 1.Write sql query to find minimum from multiple columns 2.Two persons are running on a circular track in the same direction indefinitely. The speed of both of them is given, say u and v. Now, how do I find out the the number of distinct points at which they will meet on the circle. 3.How to synchronize connection pool.I told him we can use blocking queue.He wanted to use wait n notify only.Dont know why Anyve overall i thank god that i didnt clear this interview because i dont want to join the company where HR doesnt know how to treat visitors