Yes!
As trees are plants, there's no such thing as a non-kosher tree.
There is such a thing as kosher rice paper. You should try a local food store that specialises in selling kosher food.
All water is kosher, there's no such thing as 'special kosher water'. A mikvah is simply required to have fresh running water from a natural resource.
The Nemerson was not a kosher hotel. Please note that there's no such thing as "kosher style", at most, food could be described as "Jewish style". However, the Nemerson served shellfish.
Yes, provided it doesn't contain and hasn't come in contact with non-kosher ingredients, hasn't been processed or packaged on equipment that's also used for processing or packaging non-kosher beverages, and doesn't go into containers previously used for non-kosher beverages.
Your best bet would be to call a kosher butcher in the Chicago area to find out who deals with kosher organic corned beef if there's such a thing available.
No processed food is kosher for Passover unless its label has a symbol of reliable Rabbinic supervision.
To name all the kosher and non kosher animals every living thing on earth would have to be named. It may be simpler to go to the following website for guidance in this matter.
Kosher means the same thing today that it has always meant: "fit for use" (whether it be food or other items)
Unless you wish to purchase "organic" antibiotic free kosher meat, it's pretty much as sure thing that the kosher meat and poultry you purchase comes from an animal that had been dosed with antibiotics at some point in its life.
Kosher salt is exactly the same thing as any table salt the only difference is it bigger pieces. The only reason it's referred to as kosher is because in order to eat kosher meat the blood must be removed and it is usually done by a process of salting and bigger pieces of salt work better for it
There is no such thing as "koshered food". Kosher food is food that is acceptable for Jewish consumption because it follows the Torah and Rabinnic requirements for food preparation. Koshered appliances are cooking implements that have been sufficiently cleaned so that they can prepare kosher food without contaminating the foods with non-kosher elements and thereby rendering the food treif (un-kosher).