[Rockslide]

> Clock hand question is painfully obvious once you look at actual analog clock face.

You see, intuitively I thought this would involve some kind of radian maths (just because it's about angles and a circle) and I don't remember any of that - never had any use for it.

But yes, it is a lot more easy than that. Not sure I would have discovered the trivial approach in an interview situation when it didn't even occur to me at home on the couch.