Five year olds? - nothing! Many years ago my daughter, then aged three or four, asked me, "Daddy, if I die, does that mean no-one will be ME any more?"
Whilst watching athletics on the telly, my daughter noticed the camera that runs on rails alongside the track when the action was being shown from a camera up in the stands. She asked me "Is that for the runners to chase, like the hare that they have for the greyhounds to chase? she was 14.
She also asked me what a tick was after I found one on our dog, I told her it was a bloodsucker that sticks it head under the skin and then drops off when its full, she said "what a dull life, I think I would rather be a flea, at least fleas have a chance to join the circus"
She is a bit different my girl.