Puzzling

For your puzzle-ness

They Might Have Said: A simple substitution code has been used to conceal a "quote" with the enumeration 6 3'1 4 2 2 7. Work out the code to decipher the original words.
Humpty Dumpty:
16-12-5-1-19-5 4-15-14-20 3-1-12-12 13-5 1-14 5-7-7-8-5-1-4

Odd Man Out: Which of the words below is least like the others? (The difference has nothing to do with vowels, consonants or syllables.)
PLANES PAIRS MORE AVENGE EVINCE EXTRACT HASTEN