Etiquettes

Q: Is it permissible to wash the hands in the same plate that we ate the food (after eating)?

Q: If a hair from a human or animal gets on a food or drink item, do we have to dispose of it? I have multiple cats at home.

Q: I would like to confirm about the sunnat way of drinking water, should we drink water in 3 breaths or 3 sips.

Could you please provide arabic ibaarat as well?

Q:

1. Is it an authentic statement in Islam that, if we eat with more than 2 items of food, we have to feed a guest or guests?

2. If anybody cooks and eats with more than 5 or 6 items almost every day, will Allah Ta'ala will like it?

3. And if anybody wastes foods mostly due to cooking too much, that person will be sinful?

4. If a wife's husband always wants to eat more than 5 or more items, but she is busy with her kids and other household works, and her personal prayers, will she be sinful?

Q: Is there any sunnah or recommended way to stir food, tea or coffee? Should it be stirred in a clockwise or anti-clockwise direction?

Q: I saw in one of the posts that we are forbidden from eating with the left hand. In my mothers case she had a stroke and can only use her left hand, is she committing a sin by doing so?

Q: Is it permissible to use plates that have a silver line around the plate (silver paint around the plate)?

Q: If something is stuck in our teeths, after taking it out with toothpick, can we eat that?

Q: In respect of leaving something open overnight (without covering it), what is this confined to? Is it food only, or tablets also, or all edible items.

Q: Why in Islam you are not allowed to eat or drink with the left hand? Is it mentioend in any hadith?