Google had launched a daily trivia puzzle game called "A Google a Day". [Its a bit old info, but I wanted to share :)] The questions are bit tricky that the user will not get the answers just by searching the question. They have to use their creativity and search skills to find the answers.
It is created by Daniel M Russell, who is a search researcher @ Google. You can read more about the AGAD in his blog.
Google is using a tweaked version of its search engine called Deja Google for this puzzle site. It leaves the recent webpages / updates like twitter feeds or the published answers about the questions. They do not want us to find the answer immediately or directly, we have to use our search skills.
Yes people I can hear you... Google is a search company and want to find out how searches are performed in the Internet. But, hey its fun to learn something new once in a while and they are making it the Google way - The simple and fun way... :) :) :)
Answers for previous day question is posted in Geek Dad