In an international conference there was a huge discussion... sTUDENT Delegates form five nations were there and were asked a simple question.... what substance or material changes from liquid state to solid state when kept in steam? China... No chance. There is no answer for such a question in any books. London...There is no answer for such question in internet. France.. Meaninglesss question. America.. No answer India.. ```````````````Hey crack guys. You even dont know this? "IDLI" is the answer