Student Neighbour Practical Problem

[kuiperbelt]

Using 2 switches of the type 'single pole double throw',
sketch an electrical diagram to show how an upstairs light bulb
can be controlled from either the hall downstairs or from the upstairs landing.

[ZebuSanctuary]

//turn the landing light on from downstairs... climb the stairs... unable to turn the darn thing off from the upstairs switch//

There is no need to.

Is it not fair to say, UK households leave the landing light on throughout the night. Plus, who needs the landing light switched on during the summer months?