A few issues
It's not a bad quiz, with some decent questions, which can't pose too much of a problem to users prepared to look at the FAQ, the forums and the like to get their answers.
The one question that you posed in Hard mode has a real issue with the fact that the maths is wrong - 30 per day for 516 days does not equal 17,500 B/P, which is the requirement for Colonel, the corresponding badge. A little trial and error will find the answers if you're desperate for getting further in the quiz, but it's not really what I was after.
A good selection of music and it all fits together quite well.
[Review Request Club]