Pet Dual Wield Mechanics?

[NZV]

52 levels into my enchanter and I'm still not really clear on this. There's a lot of conflicting info out there. Maybe some of it was true in the past and no longer is; I have no idea.

For simplicity's sake:
Does a humanoid charmed pet benefit if I toss him 2 rusty daggers?
Does my animation pet benefit if I give him 2 rusty daggers?
Does a mage/necro pet at this level benefit from 2 rusty daggers?
Does giving a pet a torch still help at all?

I play with a mage a lot and I'm never sure if I should be asking for summoned dags or not.