I'm not an expert at all, so I'm just answering these the best I can 
What ducks are good pets? I have Calls and they're very friendly.
What ducks are good for eggs? I've heard Khaki campbells, white layers, Pekins, and Indian runners are good layers.
Can you mix the larger breeds of duck with the smaller ones? Yes, but you can't keep larger drakes with smaller hens.
How many ducks do I need to get consistent eggs? 3-5
Do I want a drake? No, unless you want to hatch ducklings. Otherwise they're more trouble and it's much easier to just keep hens.
How many ducks (is there a better name for female ducks?) per drake? Females are called hens or ducks! I'd say 5 is good for most drakes, sometimes 3 might work but it always depends on the drake.
Can ducks and chickens be allowed to free range together? They can, but you cannot keep drakes around chicken hens.
How much space do ducks need? A minimum of 5 sq. feet in the coop and 10 in the run
Do ducks need access to water for swimming? How much/how deep? They don't NEED to swim but they'll be much happier if they can. A kiddie pool works fine. They do need to be able to dunk their heads in water to clean their eyes/nares though, I use a livestock feed pan to give mine water but a bucket will work too.
What are the housing requirements for ducks? (Like how chickens need nesting boxes and roosts in their coops, what do ducks need?) Usually ducks won't lay in nesting boxes, and they don't roost (unless you have muscovies). Just some bedding such as pine shavings on the ground will be fine, and lots of ventilation

What ducks are good pets? I have Calls and they're very friendly.
What ducks are good for eggs? I've heard Khaki campbells, white layers, Pekins, and Indian runners are good layers.
Can you mix the larger breeds of duck with the smaller ones? Yes, but you can't keep larger drakes with smaller hens.
How many ducks do I need to get consistent eggs? 3-5
Do I want a drake? No, unless you want to hatch ducklings. Otherwise they're more trouble and it's much easier to just keep hens.
How many ducks (is there a better name for female ducks?) per drake? Females are called hens or ducks! I'd say 5 is good for most drakes, sometimes 3 might work but it always depends on the drake.
Can ducks and chickens be allowed to free range together? They can, but you cannot keep drakes around chicken hens.
How much space do ducks need? A minimum of 5 sq. feet in the coop and 10 in the run
Do ducks need access to water for swimming? How much/how deep? They don't NEED to swim but they'll be much happier if they can. A kiddie pool works fine. They do need to be able to dunk their heads in water to clean their eyes/nares though, I use a livestock feed pan to give mine water but a bucket will work too.
What are the housing requirements for ducks? (Like how chickens need nesting boxes and roosts in their coops, what do ducks need?) Usually ducks won't lay in nesting boxes, and they don't roost (unless you have muscovies). Just some bedding such as pine shavings on the ground will be fine, and lots of ventilation
