HI
There are many ways to cook something. People grill food, bake, use electric stoves and ovens
YES
Different ways to cook also depend on the level of knowledge and training the cook has.
YES. I TRAIN FOR CATERING
That is good, you must have skills. Cooking must have started around 2 million years ago only we have evidence for at least one.
YES. CERTIFICATE
That is more than a lot of people. New technologies have expanded the way we cook different things now.
I WOOD LIKE COOK. ALL VERAITIES
Hopefully with some more training you can. With the way trade has been and agriculture, different regions are now able to cook with vast ingredients.