No, you cannot use worker tiles to change the white die result. The rules explicitly state that worker tiles "cannot be used by the start player to assist him on his own turn (and can never be adjusted via worker tiles!)." Worker tiles can only be used to adjust your own colored dice results, not the white die.

According to the rules, all six-sided tiles remaining on the board are removed and returned to the box when a new phase begins. However, there are exceptions: ship, mine, and castle tiles can be left in place since they are all the same, and any remaining goods tiles are also left on the board.

Yes, you can use a worker tile to change a die result from 1 to 6 or from 6 to 1. The rules explicitly state that "Changing a die's result from 1 to 6 or from 6 to 1 is also permitted and also costs one worker tile." This wraparound adjustment costs the same single worker tile as any other +1 or -1 adjustment.

Yes, you must use both of your dice on your turn - each turn consists of carrying out exactly two actions, one per die. You can use your dice in any order you prefer. The rules specifically state that "The two actions per turn may be carried out in any combination and order." Once you use a die, it gets placed on the used die storage space on your player board.

According to the rules, any goods tiles that remain after giving each player 3 random goods tiles during setup are not used in the game and are returned to the box. The setup process uses 25 goods tiles (5 piles of 5 tiles placed on phase spaces A-E) plus 3 tiles per player for their starting goods storage, so in most games there will be some leftover tiles that get removed.

Yes, you can use multiple worker tiles on the same die to change its result by more than 1. The rules explicitly state: "Players may use multiple tiles to change a die's result multiple times." The example given shows Anna paying 2 worker tiles to turn a 2 into a 6, changing the result by 4 total. Each worker tile adjusts a die's result by +/- 1, and you can use as many as you want on a single die.