So you enter a toilet, needing to use the seated facilities. There are four cubicles in the toilets which are all vacant. Number 1 cubicle is the closest to you; no. 4 is the furthest away with 2 and 3 in the middle. The toilet seats are up on Nos 1 & 3 while the seat and lid are down on Nos 2 & 4.
Which toilet is the right toilet to choose to do your business? And why? Points given for showing your workings out.