The following questions pertain to general relativity:
1) Does a clock within a gravitational field advance at a different rate compared to an identical, relatively stationary clock outside the field?
2) Does light travel more slowly inside a gravitational field than outside, as measured by an observer either inside the field or outside the field?
3) Does light undergo a red shift as it climbs out of a gravitational field?
My natural intuition of all of these questions is nil.