For vs. Since Practice 1

Duration of time
It answers the question "How long?"
Starting point
It answers the question "When did it start?"
i.e. for 2 hours
i.e. for one month
i.e. for five minutes
i.e. since last month
i.e. since 5 years ago
i.e. since Christmas

Choose between for and since for each of the following questions.