Translation:The cook is cooking outside the restaurant.
I presume this means that the cook cooks food while physically outside of the restaurant building. Can it also mean that the cook cooks food at other places that are not the restaurant? (For example: "Does the cook cook food outside of the restaurant?" "Yes, he cooks at home for his family, too.") That whole thing seems clumsy, so I don't know if it really makes as much sense to others as it does to me.
Some answers might be missing, sure. It's up to current contributors to get around to adding them. I was a contributor for quite a while, though, and I know there are more answers than just "the cook cooks" that are listed as accepted.
That said, I've seen increasing number of complaints about this specific issue across the course recently - and I think there's a bug that causes only the default answer to be accepted.