I have about 25k student loan at 0% inetrest for the whole time I take to pay it off (because it is govt. funded loan, I only have to pay what I borrowed. Not inetrest or any other charges). Right now I have about 30k in saving and I was wondering if I would be better off paying off all the loan now or make the mandatory payment and invest the rest in stocks.Would appreciate any advice. Cheers..