For One-way Award:

1) Can you take a flight like the following using One-Way award?
HKG-PEK
Stopover in PEK
PEK-HKG

As HKG-PEK is 1237 miles, which falls Award Zone B (1201-2500miles), but a HKG-PEK-HKG is only 2474 miles, still fall into zone B. Can I do this itinerary on a oneway with 1 stopover (require 20000 miles)? Or do I have to do it as a roundtrip economy (require 30000miles, which is the same for One-way Business for Zone B)?
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For Return Award:

From Asia Miles T&C
The member or the Nominee may make two stopovers, two transfers or one open-jaw at either the origin, en route or turnaround point on all airline Partners except Air China and Iberia where no stopovers or open-jaws are permitted. If the open-jaw is at the origin, the member or Nominee must return to the country of origin, though not necessarily to the same city. The member must depart from the intermediate point on the next available connecting flight. The preceding is all subject to airline Partners' terms and conditions . For the purposes of this clause, open-jaw means a flight itinerary where the departure city is different from the returning city, or alternatively, the destination city that a passenger arrives in is different from the one he/she returns from on the return portion of the trip.


Transfer:
2) Does the less than 24hr rule apply just like cash-paid ticket? Or do I have to take the next available flight?

Open-jaw:
3) If I arrive in NRT, but depart in HND, they are both it Tokyo, does it count as an open-jaw?

4) Is Hong Kong considered as part of China, can I depart Hong Kong and return to Shanghai?