Miniature pinschers generally have 3 to 4 puppies or to be politically correct 3.4 is the average puppies per litter.
A Miniature Poodle can have 3 - 8 puppies in a litter.
3-5 pups I believe.
No. They are actually two entirely different breeds.
There are no miniature dobermann, they called miniature pinscher.