Misc: Who is the ghost that walks?

Questions

The M25 motorway circles which city?

"Coarse and Fly" are varieties of which popular activity?

Which Olympic gold medallist became the MP for Falmouth and Camborne in 1992?

A vehicle carrying a toxic substance is required to display a sign showing what symbol?

What was the name of the spanish waiter in the sitcom "Faulty Towers"?