Misc: In 1965 Charlie---------- , actor (Wall St, Platoon), born?

Questions

In what year was the "Marshal Plan" devised?

What links the Isle of Portland to the mainland coast of Dorset?

The Welland Canal links Lake Erie to which other of the Great Lakes?

Who is the current Secretary of State for Social Security?

Who was the dictator of Portugal from 1932 to 1968?