1. This Right walkers? thread may have more info.
2. More research needed. I have a gengineered norn in my TCR profile who has been pregnant for over 2 hours.
3. I think you're just lucky, or perhaps your parental norns are stressed out, which causes more mutations in their young.
4. I have no idea. More norns can be found here who are genderless.
5. Could be a mutation, but so-called 'illogical' memory patterns may be caused by coincidence yielding fruit, as in the following story:
KnyteTrypper wrote:
My favorite funny norn saying is also my favorite refutation of people's exhortations about "stupid norns."
One day a young female norn in one of my worlds was sitting in a room by herself expressing about how friendly she was. Suddenly a nearby door opened, a friendly young male norn walked thru it, and they proceeded to kiss-pop the giggles out of each other for quite a long time, to their mutual enjoyment.
Thereafter, whenever this particular norn heard another norn expressing friendly, she'd happily advise "Suggest you watch door!"