- The target values for standard Throws like Hear Noise and Detect Secret Door are under Dungeon Adventures on pg. 93. Dwarves are at 14+ and 18+, respectively.
- For other Proficiencies they learn, yes. This came up recently, as there are somethings called out as "Proficiency Throws" that are not learned. An example escapes me at the moment, but just assume you get the +3 on Throws for other Proficiencies you have selected under Proficiencies (i.e., 1 Class and 1 General + Intelligence bonus at 1st Level).
- Yes, they have Theology, although it's not called out as such in the Class description. It is, however, mentioned under the Proficiency description for Theology. It does not count against their available Proficiencies.
- Some Proficiencies specify how they improve. Others do not improve. On pg. 56 it states: Unless its description says otherwise, a proficiency may only be selected once. If a proficiency can be selected more than once, then the proficiency throw value required for success is reduced by 4 each time the proficiency is selected.
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