Translation:The grandmother would like to know everything.
If you know French, kende means connaitre and vide means savoir. German also has 2 different verbs. That may not help if you don't speak those languages. Basically, kende means to be familiar with something, like to know a person or know about a movie. Vide is about knowledge of facts or skills, like knowing how to multiply or read. You would say you know (kende) a place, but you know (vide) where something is. It's difficult to explain but I hope I made it a bit clearer.
Bedstemor is a general term for grandmother. Farmor means literally "father's mother" (so paternal grandmother) and "mormor" means mother's mother (so maternal grandmother). Farmor and mormor allow you to designate specifically from which side of the family the grandmother comes. It's the same concept for bedstefar, farfar, and morfar.