Utensils? As in the kitchen? They used all the usual ones: knives, spoons, pots, pans.... etc.
clay pots
They used spears, spoons,and knifes
No
the Jewish nuns
With non-stick cookware you really need to use plastic utensils that will not scratch the surface. Stainless steel however, is not as easily scratchable as it does not have the non-stick coating. That said, whatever utensils you do use, do not dig too hard into the pan as you may scrape into the surface and end up with metals in your food.
The use of wood utensils are that wood has a bad conductor of heat so you will not get burned.
There hands
They used all normal 'stone age' utensils, there were no truly unique utensils in use.
what can they cook? they dont have any food, therefore, no need for cooking utensils.
for zinc u can use pennies,for silver u can use any kind of silverware,for aluminum u can use popcans,and for copper there are many cooking utensils made of it.
wood
no