24906 miles xD
Cuba is about 795 miles long from one end to end.
3000
There are about 32.1 miles from one end of Calgary to the other end.
Land's End to John-o-Groats is 837 miles
300
East-West, roughly ten miles North-South, roughly thirty miles
Lands End to Alnwick (last place before Scotland) would be about 500 miles
5.3 miles
50000 is not as much as the earth. So 0
The earth is [approximately] spherical and, as a result, it has no ends!
The thermosphere doesn't have a clear-cut end in terms of miles since its outer boundary gradually transitions. It can extend from about 56 miles (90 kilometers) to beyond 440 miles (700 kilometers) above the Earth's surface.
182 miles end to end