First question:

Is it possible for God to have a sense of humor? If so, what form must it take?

Consider:

Is God able to have a light sense of humor?

1) A light sense of humor may be described as the ability to laugh at one's self or others in a lighthearted manner.

2) Lightheartedness is expressed as being 'carefree; cheerful; [or] gay'

3) God cannot be described as the third option above (reference: www.Bible.com)

4) Cheerfulness is described as 'noticeably happy and optimistic'

5) Carefree is described as 'without cares; free of concern; easy; casual; without difficulty'

6) God is never once heard to sing happily to himself or whistle.

7) God invented Hell.

8) God cannot be considered cheerful (from 4 and 6).

9) God cannot be considered carefree (from 5 and 7).

10) God cannot be said to have a light sense of humor (from 3, 8, 9).