You need to call your local Orthodox rabbi so he can come to your house to help you.
Eggs are kosher if they come from a kosher species of bird.
This makes no sense. Some kosher what?
The question makes no sense. Who is "kosher"?
Kosher Pizza Express
That depends on the company that makes it.
All salt is kosher. "Kosher salt" is a particular grade of salt, with coarse crystals, that is used for making meat kosher, and is also useful in cooking. It's no more kosher than any other kind of salt.
If the kosher caterer in question makes wedding cakes, the cakes in question would be kosher.
it chews its cud and has split hooves
the refrigerator is iron or steel, therefore the magnet sticks to it.
most marshmallows contain gelatin, which is made from pig bone, a pig is a non kosher animal gelatin made from it is considered to not be kosher.
Kosher means fit. The set of laws about what makes food kosher is called 'kashrut'. These laws specify what foods religiously observant Jews can and cannot eat.
The refrigerator isn't actually a magnet, it it simply made of metal which magnets can then stick to.
It absorbs the bad smell in the refrigerator and that makes it smell better