Yes, you can . They must be mounted as a pair.
Yes, you can
Yes
If that vehicle has all wheel drive all 4 tires need to be the same size.
That is an acceptable swap but a much better choice would be 245/60-17 which is an excellent swap.
265 70 17 tires can be found online at sites such as "Amazon" or "eBay". One could also look for deals on such tires at a local mechanic or dealership.
Well, honey, technically you can replace your 225/50/17 tires with 235/65/17 tires, but just know your speedometer might be a little off and your ride might feel a bit different. Make sure there's enough clearance in your wheel well, and you should be good to go. Just remember, it's your car, do what you want with it!
yes, but the 245 will be wider.....make sure you won't have clearance issues when turning...otherwise you'll be fine.
Can you? Yes you can. Should you? No, you should not because the 65 series tire is 4.84% (1.47") smaller in overall diameter than the 70 series tire. You should never go over or under 3% difference. If you wish to go to a 65 series tire then you need to install 265/65-17 tires that are only 0.19% (.06") larger. That size will be an excellent fit. A 255/65-17 will also work well but not quite as well as a 265/65-17. A 235/65-17 will not work well and you should not install that size. Know that the 265 may rub the fender liner when you turn sharply so check that.
I have heard that at highway speed (75), you will be going ~ 2 MPH faster than it shows
sears.com charges about $90 to $120 for Cooper STT tires that are 235/65/17. You can see the rate at http://www.bizrate.com/automotive-tires/wrangler-at%2Fs-411154177-lt215%2F75r15--pid1794722528/
SIZE TIRES, that You can fit on: 14" rims: 235/60/14 15" rims: 215/60/15 16" rims: 225/50/16 17" rims: 235/45/17