Looks like someone is studying for a Cathay interview.
The hot brake question can't be answered with certainty. There are too many variables to make it the same brake every time. Factors to consider would be brake wear, crosswind, assymetrical braking, etc.
There was an answer for the winglet question couple of days ago either here or over on flightinfo. Not sure that I agreed with it since it basically comes down to looks. A 777 with winglets would look ugly
Good luck with the interview,
Typhoonpilot