Holy **** I say as I learn that there is a better cheat for Test 5. I'm sorry this is late y'all, but a huge shout-out to Nicole88 who posted on Lostpedia about a much better cheat.
When you get to the Conway sequence question like this:
32 1312 11131112 ______
We get the answer is 31133112, but don't enter this, CLICK! Click 1113112 (3rd one) then 32 (1st) then 32 again (1st) and so forth to make a full 31133112 sequence. A noise sounds and voila, 100% score. You can even skip every question prior to the Conway sequence one, and then every one after it!!!