My number puzzles                                                  1. I am a multiple of 50                              

2. I am less then 500                                 

3. if I multiple myslef by two you get 360

4. I am a factor of 720                                

5. The sum of my digits is 9                    

1.IT's a multiple of 5 

2. My number is a factor of 300.

3. It's more then 100.

4. It's odd and it can't be 50.

5. The sum of my digits is 6.