Apologies if these have been asked already - tried to do a search but couldn't find answers.
1. If you run out of one type of dice and you need more (Assign a worker on the appropriate space, refill the space between rounds, etc.) are you just SOL?
Just SOL...The warrior dice are finite.
2. When you send extra food on a journey and it doesn't get used, does it come back? I figure it does since warriors and private ships come back.
Nope, food is perishable and doesn't come back.
3. If all of your warriors die, does your private ship return or is it lost forever?
Returns, you never lose your private ship.
4. If you send an axeman on a journey when the enemy doesn't allow axemen, do they automatically die, or are they just not allowed to take part in combat (they stay on the ship and return home)?
They can't be used in combat and return home. They're useful for sucking up losses due to whirlpools or other hazards.