Now know your external IP with one Google search

yes , Google is throwing your external IP address in very first search results 

whenever you want to know what is your external IP then you to open your router administrator panel or you have to visit some sites like http://whatismyip.com or something like that but that’s annoying but not more hassle for knowing you IP address just use http://google.com

see how it works

just type IP

NOTE: this is not available for google.co.in yet so you have to choose google.com from main google page