Well said Mr Seatback 2! I absolutely agree with what you have written above. I definitely felt as though I had had my mind bent in many different angles throughout the day. It wasnt so much as difficult, for any of you who are worried, but more as Mr seatback said 'Challenging'. It certainly tests your stamina and keeps your brain active through out the day (which for me was absolutely refreshingly different from other interviews I have attended and I did enjoy it).
I wish everyone as well the best of luck, remember to breathe, stay calm and just do what you do best...they've chosen you from many applicants to attend the interviews...they have already seen your potential before you may have!
Cheers