Your surgeon will see you in the pre-operative holding area before your operation or earlier if there are any relevant issues.
No, there may be a wait depending on the order of the list as to what time you have your operation.
Yes it is very important to bring all relevant X-rays with you.
Yes you can, even on the day of surgery with a small sip of water. Patients with diabetes and those on blood thinning tablets will have special instructions.