Misc: what film won the oscar for best picture in 1989?

Questions

On The Simpsons, baby Maggie's first words we gurgled by who?

Which American magician & escapologist was born Erich Weiss in 1874?

In music, what 'H' is an open framed instrument played by plucking the strings with the fingers?

The name of the famous basalt pillars found on the Northern Ireland's coast?

In the animal kingdom, what type of animal is a rockhopper?