Hello! some help on this puzzle please

For example there are 104 people in the room, state if the follow is true or false and

a) Explain the reasoning if true.

b) If false give a situation where the statement is not applicable.

1. There has to be at least two people in the room who have their birthday on the same day

I know there 365 days in a year

2. There has to be at least 9 people who have their birthdays in February

3. There has to be at least 10 people who have their birthdays in the same month

False

104 people/12 months = 8.6

4. There has to be at least 9 people who have their birthdays in the same month

False

104 people/12 months = 8.6

I'm a bit confused with part b) If false give a situation where the statement is not applicable.

So for the last two I could possibly say - if four more people joined the room then this would make the statement true?