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.
What is the Difference Between a Neurosurgeon and an Orthopedic Surgeon? Atlantic Brain and Spine