No this is a bad substitution as the 205/65-15 tire will be 5.07% smaller in diameter. A good substitution is 235/65-15 which is only 0.63% larger in diameter which is a good swap.
You can change the tires without a problem, just see your mechanic and ask them to try this size out and to see if it will rub against anything. When you change the tire size it would be wise to have your alignment checked out also.
yes
no
Yes, that is a pretty good substitute.
Yes, they can
Yes, they can
Yes, you can
You can substitute these tries if need be. But if you do this your car will be off balance.
Normally. yes.
Yes, this is an excellent substitute.
Yes, that is a reasonable substitution.
Yes, you can