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:

Henry David Thoreau wrote about the Walden Pond wilderness. How many miles was it from the house where he was born? (Measured from his birthplace to the current Walden Pond Visitors Center.)

YESTERDAY’S ANSWER (mouseover to see):

Search Google Maps to learn that those GPS coordinates mark the spot in Brazil where the Amazon River ends. Search [what fish breathes air Amazon River] to find the lung fish and arapaima. Search for [largest freshwater fish] to get the final answer: the arapaima. Found in the Amazon River Basin, it breathes air (having both lungs and gills) and can leap several feet out of the water.