relative pronouns and adverbs

I like people who are honest.
She's reading a book which makes her laugh
The boy whom you met is my cousin (No se debe usar mucho o nada)
Her room is one whose door is locked
She is in the room the door of which is locked
I don't understand what you're saying
He said he's lazy which is true (perezosa)
The day when he arrived his family wasn't there
We live in a place where the sun shines
I don't know why he's so angry