The actual action of doing a back handspring only takes about 4 seconds. But, if you mean learning to do a back handspring, that time can vary depending on the person and the time spent practicing. It can take months to years.
8 minutes
About 10 seconds
depends what their doing and what they have been doing
it depends, how big is the road?
It takes around one minutes for an average person to walk 11 metres.
3 weeks
It takes about a second per word.
About 3 weeks on average.
It is debatable about what an average person is. An average swimmer can swim 2640 yards in about 30-50 minutes. It just depends if they are a swimmer.
Depends on the person... But the average is 7-13 minutes
2 hrs and 39 minutes
A little under 2 minutes.