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:

What’s the difference, measured in feet, between Earth’s lowest point below sea level and its highest point above sea level?

YESTERDAY’S ANSWER (mouseover to see):

Searching [Federalist No. 10 author] yields James Madison. Search [James Madison Secretary of State] to find that he served under President Thomas Jefferson and supervised the Louisiana Purchase, a real estate deal that doubled the size of the United States.

Homepage photo: NASA