215 60 r15 is smaller, 215 being the width of the tyre, 60 being the height of the wall (% of the width) and r15 being the radius of the wheel
21560r15
No the rim and tire are too big.
Yes. Your 205 tires will be 0.5 cm narrower and 0.085 cm greater overall diameter. This may cause a minor loss of traction, but in a pinch it'll work.
The manual tire changer comes in one size. There is no smaller version available at this time.
Yes, the smaller the aspect ratio the wider the tire.
it is actually smaller
That depends. Is it an actual "spare tire"? A tire of actual size. Or a "donut" tire? A smaller version of a spare tire. That latter is also known as a "space saver" tire.
It is a lower cross-section, so will be slightly lower and wider.
Yes
Mini spares used in many cars for the spare tire. A smaller diameter tire that is narrow and harder than the regular tire.
The standard spare tire size, for a 1999 Toyota Camry, is 135 R55 15. The spare tire size is smaller than the standard tire size.
No, it is not recommended to use a smaller inner tube for your tire as it may not fit properly and could lead to safety issues while riding. It is important to use the correct size inner tube for your tire to ensure proper function and safety.