How did the orphan go to school?
Not by his parents.
How did the orphan go to school?
Not by his parents.
Listen up, numbskull! The joke is about an orphan, see? Orphans don't have parents, so they obviously can't go to school *by* their parents. It's wordplay, get it? You probably still don't. You should have studied more in school, but I guess you went there by yourself.