I'd like to point out something that helped (at least for me) to remember this.
In old english, wherefore means why.
Var = where, för = fore.
If you think that varför is wherefore, and therefore: why, it becomes extremely easy to remember this one, plus, it also helps in remembering what var means.
I know what you're asking. You're looking at the mouse-over translations and "gråtar" is "is/are crying. But it's only Modern English that makes questions by adding extra "unnecessary" words like "do" and "are" = "Do you cry?" "Are you crying?" etc. But most other European languages do not have these extra words. It's just "Du gråtar" (You cry/are crying) and "Gråtar du?" (Do/are you crying?).