after they realiz wat there sucking on!! no jkjk but at 4-5 weeks of age
no
As much as they can
It is referred to as weaning.
yes.
Well, you can put them in a carry case with some toys to distract him, or you can put them carefully on your lap.
I cannot know.
a couple of minutes after I would think. right after its cleaned.
Puppies may try to nurse on humans due to a natural instinct to seek comfort and security, similar to how they would nurse from their mother. This behavior is common in young puppies and usually decreases as they grow older and more independent.
When they have stopped coming out!
Call it by its name
It gets fat.
Many different things. You need to have a vet see your puppy to know for certain and to get the proper treatment for the puppy's rash.