Misc: What in sound reproduction is the name of a slow fluctuation in pitch?

Questions

What is the name of the cocktail, a mixture of tequila,lime juice and an orange flavoured liqueur served in glass rimed with salt?

What is the name of the hot south wind which blows on to european coast of the medierranean?

What series began as an adaptation of The Adventures of a black bag?

In which english city did the new LS Lowry Arts Centre open in April 2000?

Which WWI german fighter ace gave his name to an aerial turning manoeuvre - a half loop followed by a half roll?