Can I dog have more puppies than it has nipples to feed them

  yes, but i wouldn't worry about it. there are enough nipples in the world for those dogs to get proper nutrients.
Yes. But they usually just take turns in large litters. And if it looks like ones not getting enough , you can always suppliment with a bottle.
Of course. Te pups rotate when feeding and sometimes the owner rotates them. I had a litter of 12 that was successfully raised with NO supplemental feedings. My b * tch did not have 12 teats.
The average female dog has 8 teats. They can, however, deliver more pups than they have a number of 'taps' for.
She "caught preggers" its not a disease .. and yes they can. You should spay her.
Yes. What is with your fascination with a dog's nipples?
Yes, if she's been around town a little too much.
Yes
yes
yes