Walloons speak what language?

Question
Beelzebub is Hebrew for which phrase – also a novels title?
Answer
Lord of the Flies

Question
One death per day is caused by what?
Answer
Wrong prescription / dose handwriting

Question
Chimpanzees, gorillas and orang-utans what is missing?
Answer
Gibbons

Question
What industry would use a mordant
Answer
Dying – to fix a colour