2/3
This depends on a lot of factors including sex, amount of training and how fit one is. A good time for a fit, competetive woman swimmer is 15 seconds. Men around 12. For the average person, it would, of course, take longer.
12
I can fit about 12 in my house
12
9
i say about 12.
12
12
You can fit six of them.
depends on how tall he is
12 liters is about 3.170 US gallons.