1 minute and 43 seconds
As long as your mom took to fall for me.
Not too long.
depends
it just won't take long
The Empire building didn't fall down.
It takes them about 20 minutes to fall asleep. I CAN'T WAIT THAT LONG!!
Not very long. Some people can fall in love at the age of 4 years old.
never
5 months
about 2 minutes
It depends how wet it is, how heavy the building is, how well built it is, etc