Yes, though watermelon seeds are not good for them to eat.
A dog and a human both are about 80% water. A watermelon is 92%. So it would depend on the size of the dog.
Watermelon, in general, is a natural laxative. If any part of the watermelon is given to a dog, the dog may show signs of gas or even diarrhea.
Watermelon has a diuretic action , as it is almost all water. Warfarin is to thin your blood. I see no problem, but call any pharmacist to make sure.
No
The seeds will be digested.
your dog is like that because its thirsty or tired so let it rest ok ok.
Yes.
That is OK as long as the dog does not have fleas.
No you have to bring you dog to the doctor fast
no.
No!
Ok