Answer:
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
I am partially baked. I am not completely lit. I am a portion of the moon. I am lesser than full wit. I am a divider of the hour. I am not a total lie. I am a sibling through one parent.
When I am alive, people sing. When I am dead, people clap hands. What am I?
What can you catch but not throw?
There was a girl half my age when I was 12, now I am 66, how old is she?
What never gets any wetter no matter how hard it rains?