It would obviously take 20 hours as there are half the men! ... do the math!
nope wrong ^^
The wall is already there (it is the same wall) so they would need no time at all *lol* ^-^
About 1,000,000,000 seconds I say it would take longer becasue it would take longer than 1 second to say eg. one million six hundred and twenty four thousand nine hundred and sixty five. So if you timed that for each number it would take a long time. Answer: Although lower numbers (1, 2, 3 etc.) can be said in a second or less, larger numbers like 999,999,999 take up to 5 seconds to say. Assuming that an average value would be 4 seconds the time required would be 4 billion seconds if you didn't stop or rest. This is the same as 127 years.
10 Minutes
Do you think it might depend on how fast you count huh do ya ? If you count one every second and never stop, it would take almost 146 years.
it wouldn't cos u would be dead
To count one billion objects, it would take you however long it takes to count one object times one billion. It does not matter how much mass the object has, so your statement of mass is meaningless.
It will take about 350 years.
a long time!!
how long does it take to build a asimo
For me as an individual, it would that years to build a cloud. I would assume for someone with the knowledge it would take no more than 9 hours to build a cloud.
It would basicly take a month to build one
10 Hours
how long did it take to build the half moon
how long did it take to build the scottish parliment?
how long did it take to build cabot tower
20 hours
50 million years
Too many variables to give you an answer.