This page shows a list of consecutive quadruplets drawn in Powerball, ordered by frequency.
There is no difference between Goblins and Orcs as far as being different species. They are basically the same. If I had to name one difference it would be that Goblins are a type of Orc that has developed more to tunnels and caves, whereas Orcs I think of more patrolling in open spaces, such as the plains of Gorgoroth.
Orcas, like other cetaceans, travel in pods. Orca pods are matrilineal family units, which means that they are headed by a female, usually the mother. Resident pods are usually larger than transient pods. A resident pod can include from five to 50 orcas, whereas a transient pod usually consists of one to six orcas. The differences in pod sizes are probably due to differences in feeding habits (see Feeding Habits below).