The health issues pugs can have are too numerous to write here but the link below has a good covering of all the possible problems Pugs can get, of course most Pugs are very healthy little dogs.
No, pugs are dogs.
pugs are dogs, and dogs do NOT lay eggs
yesss
They are dogs and mammals.
dogs
Yes.
no
Pugs are short haired dogs but they do moult a lot :)
No, they are dogs.
Pugs are fairly rambunctious dogs. They love to play and run around, although they are fairly low maintenance.
Pugs and Bulldogs!
Yes, all dogs shed.