Yes; it was written in 1961 and renewed, so it will be protected through 2056.
The lyrics to the song Unchain My Heart by Joe Cocker can be found online at popular sites like MetroLyrics, 911 Tabs, MP3 Lyrics, Song Lyrics and Ultimate Guitar.
That would be copyright infringement if the original song was protected.
The song will be protected through 2050; recordings will be protected longer.
No; it is a traditional Jamaican folk song.
There are many works by that title, but the song by Alice is protected, and recordings of the song are additionally protected: one copyright on the underlying tune, and one copyright on the recorded performance of that tune.
Short phrases such as song titles cannot be protected by copyright.
Short phrases like song titles cannot be protected by copyright.
Yes; it is controlled by EMI Feist, and will be protected through 2034.
No, but a new work based on a PD song can be protected by copyright. A new translation, setting, arrangement, etc may be copyrightable. A common example would be the traditional Shaker song "Simple Gifts," which is in the public domain, and Aaron Copland's popular orchestral setting "Variations on a Shaker Melody," which is protected by copyright.
Both the song and all recordings of it are still protected.
There are two copyrights: the song itself, and the recording of the song.
Yes; it will be protected for 70 years after the death of the composer, who is still quite alive.