Sorry to disturb native English speakers. The following sentences are strange by grammar, but are they grammatically correct or making sense? 1a. Nobody knew where he came from.→ 1b(strange sentence). He came from nobody knew where. 2a. Who knows how he lives?→ 2b(strange sentence). He lives who knows how. 3. They are friends for I don't know how long. 4. He would be hungry long before a breakfast coming from he hardly knew where.