Toiveling Dishes

Do non-disposable plastic utensils require tevila?

Which utensils do not require tevila?

Which utensils require tevila?

Does a utensil made by a Jew but sold by non-Jewish merchant require tevila?

Do utensils bought from a publicly-traded company require tevila?

If the 51% shareholder is Jewish, it is not required
If many small shareholders vote the management of the company, it is required
If many small shareholders can not vote the management of the company and the company owner is Jewish, it is not required
All of the above are correct

Which of the following consists of a chatzitza?

A blockage of any kind that bothers the person
A blockage that covers the majority of the utensil
The residue of a price tag on the bottom of a bottle which does not bother the person
A & B are correct
A, B & C are correct

Utensils made of which of materials must be toiveled with a bracha?

Utensils made of which materials must be toiveled without a bracha?