#1
In general, and for most distortion pedals, when 2 or 3 band eq are availible, is the eq boost at zero when the knobs are at 12 o'clock?

Does that mean if you turn any eq knob to 7 o'clock it is cutting the frequency the knob states (high,low,mid)?

Or do the eq knobs only BOOST the frequencies?

Let me know if this makes sense.
#3
In general you can assume that 12 o'clock is somewhat neutral. But not always. I used to have a Bad Monkey and you had to go higher on the treble (High knob) to get neutral. I don't think any are neutral at zero.