Please help...

1.What and when is a Blue and Gold Day?

2,When we say someone lives off the ocean, where does he live? On land? or on the sea, in the ships?

Thanks in advance!
;)

1. As far as I can gather, a Blue and Gold day is a fun day in American schools and colleges. Students, teachers and sometimes parents too participate in competitions, entertainments and fund-raising events. Teams wear either blue of gold clothing. No doubt our American contributors will correct me if I'm wrong.

2. 'To live off the ocean' means to earn a living from the produce of the ocean. A fisherman lives off the ocean. Similarly, a farmer lives off the land.