I am first in earth, second in heaven, I appear two times in a week. You can only see me once in a year, although I'm in the middle of sea. What am I?
Took me a long time to figure it out, E First on 'E'arth The second on h'e'aven Appear two times in a w'ee'k You can see me only once in a y'e'ar Because I am in the middle of the s'e'a.