There is no "white stuff" in a silencer/muffler, unless you mean fiberglass packing. It has no use when removed.
The white stuff inside your kettle is likely limescale, which is a mineral deposit that forms when water with high mineral content is heated. This is a common occurrence in kettles and can be removed by descaling the kettle regularly.
I don't have any dried peppers, but it is probably part of the pithy ribs that are inside fresh peppers. When using fresh peppers, those are frequently removed.
Bugs duhhh
The white stuff inside an apple is called the apple core, which consists of the seeds and fibrous material. It is safe to eat, but the seeds contain a small amount of cyanide, so it is best to avoid eating them in large quantities.
you visit a vet
The white stuff that is put on windows during renovations is a window cleaner spray, such as Bon Ami or Windolene. This is applied to the windows so that nobody can see inside.
no it is black and white so it could kill you and have plitical immunity
you have a dry socket and need to go back to the dentist and get it drilled out
The white stuff inside your tea kettle is likely mineral deposits, also known as limescale. This occurs when minerals in the water, such as calcium and magnesium, build up over time as the water is heated and evaporates. Regular descaling of your kettle can help prevent this buildup.
white walls computers hi tech stuff running machines lots more
Its called "callus tissue" and is a natural part of the peach. It is not mold or fungus or anything harmful.
The white stuff on plastic Ziploc containers is likely calcium or mineral deposits from water that has dried on the surface. It can be removed by washing the container with warm soapy water and a sponge or cloth.