When I was young,I always read books at night.Which of the following is correct for the underlined word in the sentence?

---Can you give me______ information about Paris? ---Sorry, I know nothing about it. 

Mrs Smith lives in such a big house without a child around.So she feels very ___．

 —______ there is no water left on the earth? —I really don’t know.

He's been collecting stamps _             he was eight years old.