This is crap. I took a few of the C++ quizzes and not only did it show me results that did not match what I had actually answered on the quizz. I noticed since it gave me a fail on some very basic questions where I was 100% sure what I had answered, yet in the results page it showed I had answered something completely bonkers and marked the correct answer that I should have given (and did) - some programmer there needs a whack with a clue stick. Some of the questions are just gibberish - like "In which type does the enumerators are stored by the compiler?" - that's not even a correct english sentence. Also, some questions had answers that were duplicates; so, should I tick one or the other or both? This site seriously needs work. In its current form it's crap - pure and simple.