3 questions : expired coupon / Change Font / Change header search drop down menu

Hi All
I have 3 settings to fix.

1) I would like to keep the expired coupon showed in the search result & Home page. Where can i set it?

2) I’d also like to change the (attached pict #2) Titles Font , where can I set it?

3) In the header drop down menu (attached pict # 1) i’d like to change the “store” to the “categories” one, where can I set it?

thank you very much
Ale