yes that's what is required on most.
No, it will not.
215 70 R15
the specs for the tire size for load capacity of a 2005 dodge grand caravan is 215/70 r15
Yes, you can mount 225-60r16 tires on a rim made for 215-65r16 tires.
215 60r16
215/60r16
215/65 R 15
215/70R15 (215 - height - 70 Width) R15 - rim size.
Depending on if it came with 15" or 16" wheels. 215/70-15" 215/65-16"
215/60r16 95v
215/60r16 if your stock rims are 16"
215/70R16 or 235/60R16 depending on what model