24.
Has to do with the earths tilt and whether you live in the northern or southern hemisphere.
The amount of daylight in a "24-hour" day actually varies due to a combination of the Earth's elliptical orbit around the sun and the tilt of the Earth's axis. The further north or south you are from...
depends on the time of year, the answer is anywhere from 24 hours of sunshine in summer to 0 hours of sunshine in winter
15
Their is 11 because 12:00 A.M. to 12:00 P.M. is 11 hours