This is apparently a game that helps you learn how to use Google more effectively. Not sure how you pronounce Gwigle - is it Gw-eye-gle, Gwiggle or 'Crap'. I think it's the latter. It's a great idea, but the problem is that - well, you take a look. Here's a screenshot:
The idea is that you work out what the ??? represents, type it into the box on the top right hand side, get the answer right and move on. You can't save anything, so you have to go back to the start every time, which is tedious. If it's not immediately obvious from your own general knowledge, all you need to go and do is highlight from one of the answers, cut/paste into Google, do a search and get the answer that way. The one that you can't do that for, which is a maths question, there are 2 answers that are correct, but it only lets you choose one.
Total pants. Nice idea, but rubbish implementation.