Yes , that is suitable.
Yes, you can mount 225-60r16 tires on a rim made for 215-65r16 tires.
Yes you can
Subaru Outback
225/65r16
225 60R16
Depends on the vehicle, that may be too big for full steering clearance.
225/60R16 for GT and 225/70R15 for SE
You can but know that your speedometer will read 59.2 at a true 60 mph. This is a decent swap but I always recommend you stick with the OEM size. No real reason to swap sizes.
OEM installed 225/60r16
The standard tire size is 225/60R16.
Many US companies make tires of that size.
yes, if your rims are the factory 16's.