Have you ever known anyone over 100?

Yes.  A friend of mine has a grandmother who is over 100.

Yes, I've known three of four people over 100.

I am one hundred and two and a half.

I met my great-grandma when she was 102. She died a year or two later.

My grandfather lived to be either 100 or 101.  

Yes.  A friend of mine has a grandmother who is over 100.

Yes My great Grandmother lived to be 104