If this is about the 30 minutes one, I think she was right in the first place. The question says you go 30 minutes in the past, and that you return with nothing except the knowledge you gained, implying you return to the present with nothing 'changed' except your knowledge, so you can't go back and win the lottery or blah blah.
Still an easy yes because it's one of those dumb 'no downside' questions though.
"bring back" means you travel back to 'the present'.