My dog just had 4 adorable puppies. After 2 days one of them died and so did my dog:(
So now I have to feed them but I don't know what precise time and how much milk to feed them. They're now 14 days old.

You really need to get in touch with a vet ASAP.

How are you feeding them now? How did your dog and the puppy die? You need to get these pups to the vet IMMEDIATELY! You need to know how to care for these puppies specific needs, or they will die too! At this age they need a mother, and they should not be left alone ever, at this point.

I am honestly frightened and saddened that 12 days after your dog and a puppy passed away you are coming to the internet for questions on how to care for these young puppies. PLEASE GET TO A VET TODAY. I certainly hope you are not referring to cow's milk in your question. They need a milk replacement available at pet stores, however veterinary care is crucial.

I agree with everyone else, you need to get these puppies to a vet asap or they will die. Even if they don't die, you obviously have no idea what you are doing, they will be weak and sickly all their lives unless someone with experience takes care of them.

I'm sorry for your loss, but this is what happens when people with no expertise decide to breed their dogs. It's takes more that putting slot A into tab B.