A Jolly Rancher.
Tell her that if she meets with a serious accident, the newspaper will have to print her age.
Who knows? Who cares?
Ten. (Shame this one doesn't work too well for reddit - the funniest part of this joke is the third punchline enjoying people struggle to understand what the hell you're talking about.)
Because they always try to mess with his nails.
They all can! Houses can't jump!
They're both brown except the snowball.