Proper tire pressure for my bike? I wanted to ask about proper tire pressure specifically for the bike I got.

The model is Oryx Volt 26".
Tires specs are: 26" / 2.125".
I believe Toronto Police used such bikes.
Recommended pressure written on tires is 40 - 65 PSI.
I drive mostly on roads and forestry parks. Don't have any mountains.
Weight 82 kg, 180 lb.

How should I inflate my tires?
To a recommended 60 PSI or so?
Should I inflate tires equally?

What confused me is that tire pressure articles I read on the web say that for mountain bikes tire pressure should be around 25 PSI.
But my tires have recommended pressure 40 - 60 PSI.

Thanks.
Your tyre suggests 40-65 PSI, so that's a good start.

The lower pressures are much more likely to pinch-flat as the rim bottoms out on the ground, if you're riding over a rock or lump or kerb/curb.

For your weight, on a MTB on the road I'd aim for 50-55 PSI, and vary it by a little to see if it feels better or worse. 

Generally the rear wheel is holding about 60-70% of your whole weight, so it makes sense to add 5 PSI more in the rear.  Again, try and see how it feels for you.