A chef cooks meals at a restaurant. This is the standard at any restaurant.
They prepare meals for the crew
In a restaurant, a cook may work with a chef, other cooks, and servers.
Le Sauciere.
The cooks
Yes. According to dictionary.com, the definition of 'restaurant' is an establishment where meals are served to customers.
Entree
Mostly the woman cooks the meals when the man comes home from work. That's what happens at my house.
A cook or cooks generally makes food in restaurants. Sometimes, the owner(s) double as cooks.
A restaurant should provide a place where the customers can enjoy their meals.
Restaurant
Yes
A chef cooks meals for customers/people and/or him or herself.