Skip to content

Tag Archives: puzzles

Why the hot light bulb annoys me

Friday, January 20, 2012

The light bulb puzzle presents you with three switches, one of which controls a light bulb inside a closed room. You are permitted to flip switches as much as you like, then you must open the door and say which switch controls the light bulb. You don’t seem to have enough information. You can flip […]

Filed in By Peter Rowlett, Edited by Samuel Hansen | Also tagged , , | Comments (5)

Moving on a strange diagonal

Saturday, August 20, 2011

Here is a puzzle I enjoy giving to students. Given a 4×4 grid of sixteen dots, draw six straight lines that form a continuous path passing through all of the dots. Here, continuous means you must be able to draw over your six lines in one go without taking your pen off the paper. This […]

Filed in By Peter Rowlett, Edited by Samuel Hansen | Also tagged | Comments (17)