Misc: in greek mythology, who was daedalus' son?

Questions

What is the name for the study of liquid flow?

'Four legs good, two legs bad' is a quotation from which novel?

Name the Belgian crime writer who created 'Inspector Maigret'?

'Pip' is the hero in which novel by Charles Dickens?

The oldest tree in Britain is a yew in Scotland, how old is it?