Since you mentioned it rather specific, "Jill" & "Hob", I'm going to answer it as if they're not neutered/spayed.It's much easier to introduce a Jill to a Hob, than another Hob.Male Ferrets are...
There is no standardized symbol. Most newer pans will actually have "suitable for induction" or something of that aspect on the bottom of the cookware. An easier way is to bring a magnet, yes, an...
Yes! Just be sure that there are no sharp ridges on the bottom of the cookware. The only cookware that isn't advised is cast- iron, ceramic, porcelain, glass and corningware.