Ok, maybe not 'anything' - but pretty close... It uses a lesser known feature of the Google search box. For example, If you want to know how many feet there are in 12 meters, you type "12 meters in feet" and you get your answer. Or let's say your british friend tells you he has a friend who wants to get to know you better - and you say "describe him" and he says, "right... he's got a good personality, and...well... he weighs 14 stone". Of course, instead of seeming like a naive American (of course not, not you), you quickly go to the google search box and type "14 stone in pounds" and then decide... and maybe then you can use this same method to figure out how many USD (yes, that's dollars) you'll need to buy dinner in GBP (of course, that's pound sterling) - it's not a pretty answer.
Well - now that you know that trick - here's the real trick. In a spreadsheet (yes, on Google, of course) you can send that query to the Google search page in the background, get back the answer, parse it and display the answer in your spreadsheet. All this through the magic of the "ImportHTML()" formula.
I'm not going to go into the details of how to do that here - but I will give you a link to get your own copy of this sample spreadsheet (yes, you'll be asked to login to your google account, if you aren't already, to get this spreadsheet added to your doc list).
I must admit, I've had this fun thing (wha? you don't think this is fun?) lying around for a bit - but I figured I should clear the decks given that I've got some new ideas to post...