Re: 2U maths scaling?
An aligned mark is the examination mark - the mark you get when the board of studies moderates your raw mark.
A scaled mark is your raw mark moderated/scaled by UAC for calculation of your ATAR. You never get to see this.
The trivia bot is about 50 years old though. Lots of questions from the 1920's. According to it, the current French president was the guy from 15 years ago.
Juai and Einstein are another two calculators. Not sure of their accurucy though. Their benefit is that they are downloadable, not relying on a website ten's of thousands of people will be using.