Based on the clue 'a dog with a short flattened nose or the short fla...', what is the answer?

Based on the clue 'a dog of this breed became famous for saying yo qu...', what is the answer? What is referred to by 'a dog pot ball'? Based on the clue 'a dog thats a mix of 2 breeds is called a mongrel ...', what is the answer? Based on the clue 'a dog this is something only canines can hear poli...', what is the answer? What is referred to by 'a dogs descent 8'? Based on the clue 'a dogs nose and a maids knees are always this', what is the answer? Based on the clue 'a doll that has more realistic body parts than som...', what is the answer? What is associated with: a dollar dated 1804 made of this metal is now worth over a million dollars?