You can but know that your speedometer will be 1.2 mph too fast at 60 mph. Your engine will also be turing an additional 16.6 rpms at 60 mph and the engine will use more fuel. As a result your mileage will suffer. This is not a good idea and I recommend you stick with the OEM size.
Yes, they can
Yes, but your speedometer will not be accurate and performance and mileage will be effected.
no
Yes, they can
No, your speedometer will be 3 mph too slow. A 205/60-15 will be a good substitute with almost no difference in overall diameter.
Yes, you can
They are pretty close in overall diameter as the 205 will be .3" smaller. Your speedometer will be .7 mph fast with the 205. Your engine will turn an additional 10.1 RPMs every mile driven with the 205. The 205 is a good swap if you want a wider tire.
Normally. yes.
Can you replace 205/65/R15 with 205/75/R15
Yes, this is an excellent substitute.
no there is too much height difference
Yes, this is a good alternative. Your speedometer will be only be 0.6 mph too fast.