New in Osaka, questions on food, sports, daily life

I just moved to Osaka and my Japanese skills are close to none. I have a bunch of questions I would need some help on.

1. Where can I buy a used/2nd hand bike? Or a new cheap one?
2. White female with long hair, any recommendations for a hairdresser?
3. Gym, pool. I'd like to sign up for some nicer gym that maybe also has a pool/sauna/group workouts/spinning. Any recommendations? How to find one?
4. Do swimming pools normally open only at 9 am? Can't find any that would open at 6-7am…
5. Any outside sports that are popular here that one should try?
6. Groceries. Is there some store that focuses predominantly on healthy-western-organic foods? Or Italian foods?
7. What would be cool 2-3 day trips from Osaka? Or short flights (maybe Okinawa)?
8. How/where to connect with other locals/foreigners in a non-work setting?

Arigatou gozaimasu!