im involved in some hiring process, not a HR but more from domain side in one of the MBB

can tell u a few things

1. this is a screening process to remove uninterested candidates
2. some questions are 'traps'
3. they wont read all the responses, probably only a few that is relevant
4. dont give out negative vibes, turn them to positive learnings instead
5. if u want to stand out, complete the response as professional as possible then also put in your thoughts on these questions and their relevance to the job vacancy in a separate email, i can guarantee u no one does that