Yes, you can choose a spouse, a sibling, a best friend and you can travel the world.
Nope, just one per room.
I think I'm just used to it, but fun fact that you feel turbulence a lot less in the front of the plane than you do in the back.
Yes. Domestically a 100% free. Internationally you just pay the exit taxes of the country you are leaving.
All the time.
Yes, once the door is closed the clock starts, once the doors opens it stops. So your flight attendant is not getting paid during boarding and deplaning.
Almost never.
Deadheading is when you are technically a passenger on a flight to or from a different location to then work back to base or to or from the other location. It's confusing, but we love deadheads and you can wear regular clothing.
Yes, we have a specific crew area where we can sleep.