Question: "lesson" used in the same way in the following two sentences?

The accident was a good lesson to me.

He did the lesson for today.
Answer: different meanings
Question: "help" used in the same way in the following two sentences?

Can you help me carry this table?

Everyone helped out during the earthquake.
Answer: the same meaning
Question: "care" used in the same way in the following two sentences?

He doesn't care about how / whether she comes.

I really care about my work.
Answer: the same meaning
Question: "do" used in the same way in the following two sentences?

Do nothing.

Will $100 do?
Answer:
different meanings