One of my favourite " it depends on your point of reference examples" was from a book written by someone attempting to make Einstein's theories easier to understand.
We all know nothing can travel faster than the speed of light right? So I'm standing here and a spaceship zooms past me doing 10Knots slower than the speed of light. Inside that spaceship, at the rear, a kid throws a baseball towards the front of the spaceship at 11Knots. To him the ball is travelling at 11Knots but to me the ball is travelling at the speed of light + 1 knot.
Not a very practical example and the ball can only travel "faster than the speed of light" for as long as the spaceship is but it makes you think.