Our good friends at Google run a daily puzzle challenge and asked us to help get them out to the geeky masses. Each day’s puzzle will task your googling skills a little more, leading you to Google mastery. Each morning at 12:01 a.m. Eastern time you’ll see a new puzzle, and the previous day’s answer (in invisitext) posted here.

SPOILER WARNING:
We leave the comments on so people can work together to find the answer. As such, if you want to figure it out all by yourself, DON’T READ THE COMMENTS!

Also, with the knowledge that because others may publish their answers before you do, if you want to be able to search for information without accidentally seeing the answer somewhere, you can use the Google-a-Day site’s search tool, which will automatically filter out published answers, to give you a spoiler-free experience.

And now, without further ado, we give you…

TODAY’S PUZZLE:

Where was the composer of the symphony “Das Lied von der Erde” during its first public performance?

YESTERDAY’S ANSWER (mouseover to see):

Search [longest railway in the world] and learn that this is the Trans-Siberian Railway. Search [where change the wheels on Trans-Siberian trains]. Find that due to the differences between Russian and Chinese track widths, the train’s “bogies” (wheel assemblies) are changed at the Chinese/Mongolian border.

Homepage photo: Jim Capaldi/Flickr