You shouldn't, no. But it never hurts to spray it with a non-stick baking spray, anyway.
A silpat is a silicone baking sheet designed to withstand high temperatures in an oven to encourage even cooking. You place a silpat on a baking sheet and then place your food items on top of it. They are typically dishwasher safe and are reusable.
They are sheets made from silicone and sometimes also fiberglass. You place them on your pans in order to prevent using oils or one time use baking papers. They save the life of your pans, heat evenly to ensure perfect baking results, are a healthy option as you do not need to oil or spray your pan and allow easy clean up!
A baking sheet is a sheet pan or a baking tray.
Silicone dehydrator sheets.
Yes, But you would have to cook them more carefully then with the regular liners
A cookie sheet is typically made out of aluminum or stainless steel, as these materials provide good heat conduction and durability for baking purposes.
You lay the foil over the baking sheet. You do this to protect your sheet and to make whatever you are baking easier to remove. If you have a non-stick coated sheet it may not be needed.
yes
You can bake cookies or other foods directly on the baking sheet, or use the baking sheet as a tray to catch any liquids that may boil over while baking.
A cooking sheet is used for like if you want to make cookies you would put the dough on the sheet (but spread them a little apart so the cookies can get bigger). There are other things that look like cookie sheets but they are pizza pans its the same thing as a cookie sheet just round.
According to the MSDS sheet: Methyl Salicylate Silicone