and there is no ONE correct answer to the first question (Many possible outcomes can happen if i ask the dictator instead of the viking)

Nvm,no reflective surfaces. (It is a floating island and a flying ferry comes to pick the tanks up)

If my answer is based on the three Tanks being in a row like this: Viking Dictator Viking. and my answer is correct will it count? Can they look into the water? if so that changes the answer a lot.