Problem: Word: sum

Sentence 1: He borrowed a large sum.

Sentence 2: The sum of forty pounds.

Same meaning?
A: the same meaning

Problem: Word: do

Sentence 1: Will $100 do?

Sentence 2: A 'B' grade doesn't suffice to get me into medical school.

Same meaning?
A: the same meaning

Problem: Word: life

Sentence 1: The oceans are teeming with life.

Sentence 2: Having experienced both, the vampire decided that he preferred (un)death to life.

Same meaning?
A: different meanings

Problem: Word: series

Sentence 1: The harmonic series has been much studied.

Sentence 2: They were investigating a series of bank robberies.

Same meaning?
A:
different meanings