My best time ever was 4:38. That was over 30 years ago and after 5 years of running competitively. No-one has ever run faster than 3:43 (That was El Garrouj). I think your stopwatch needs adjusting.
That depends but maybe 10-15 minutes?
I ran one in 7 mins and 10 secs
6 to 7 mins the most!!!
It depends on your speed limit
8 mins, if ure fit
About 10 mts if you are jogging
3 mins 37 seconds eh? That makes you the fastest human EVER on earth. How ever did you come third?