Suicide Is Painless (theme song)

Suicide Is Painless (theme song) trivia questions

1. Who composed the music for "Suicide Is Painless" for the 1970 film M*A*S*H?
2. Who wrote the lyrics for "Suicide Is Painless" for the 1970 film M*A*S*H?
3. In the 1970 film, which group sings the title-sequence vocal version?
4. For the TV series, what type of version was used as the main theme?
5. In the TV series, the theme played over which credits?
6. Besides the title sequence, how is the song presented in the 1970 film?