You might be able to get by with it on a temporary emergency basis but if you do I'd only mix sizes in pairs and only either on the front or the back. You not only risk damaging the driveline and suspension and steering geometrym, but a single off sized tire will also be a safety hazard, it will throw off the computerized engine management system in the Jeep.
The front tires need to be off the ground.
Not without modifications to the suspension.
Fuel, oil, tires. Complements are things that one thing cannot be without. You can't drive a car without gas and oil. You also can't drive a car without tires.
Not without tires that can withstand the extreme temperatures.
Only if the tires were made of molybdenum.
If the tires are the same circumference, no. If they are different, it will cause problems with the drive train.
Yes, to both yet check with the vehicles recommendations/limitations. The downside of using over or undersized tires are, but not limited to: Voiding the tire warranty, damaging the wheel wells, damaging the tires, reducing braking efficiency, reduce vehicle handling etc.
Mud tires and regular tires have different functions for cars or trucks. Mud tires are specially created for mainly trucks to drive through various kinds of mud. There are multiple types of mud tires designed for the type of mud to consumer is planning on coming in contact with. There is thick cement mud and slick hard bottom mud. If you were to attempt to drive through the mud using regular tires, you would more than likely get stuck. Regular tires are more for cars and the road. Although , regular tires can be used in stormy situations such as, rain , hail, sleet, and snow; They are not specially made to drive through large amounts of mud that mud tires can drive through.
Bikes styles all have different tires to suit terrain. There are road racing tires, cruising tires, off-road tires and many different wheel sizes too.
Depends what tires they are because different tires have different densities...
Sounds like you are talking about "curb feelers". They rub on the curb letting you know that you are close enough to the curb without damaging the sidewall of the tires.
The drive tires are made of very soft rubber.