Hey roosey project! really enjoy watching your channel. I've got a small channel as well (the gentry bros) if you want to check it out.
Some fun questions would be involving other events:
what feild event would you do if you couldn't run?
or
how far do you think you could throw a shot in shotput?
What is your favorite cereal?
ask them how much they know about elite runners. I've always wondered how much the average guy at a highschool track meet knows about the sport -
such as who is the goat distance runner?
what do you think of the nike oregon project?
who won the world champs/olympics in X event?
Who's the hottest bowerman babe? (gotta be colleen)