Name The Year: US Airmail begins between Wash DC, Philadelphia and New York.?

Questions

What expression is used to describe a child who closely resembles a parent?

The Boomtown Rats were averse to which day of the week?

'I'm Gonna Be'(500 miles) was a hit for who?

Who was shot as he left the Washington Hilton in 1981?

In what field was Terence Donovan famous?