Try to work out the solution yourself, there will be spoilers in Comments – Don’t scroll down if you want to try and solve it yourself!
Remember that if any of the men cross the bridge and there are still some men (or man) left behind, one of those men who has crossed needs to go back with the torch, as the men (man) left behind cannot cross the bridge without it.
If two of the men cross the bridge, then the time it takes for them to cross the bridge is the time it takes for the slower person.
Solution video is here: https://www.youtube.com/watch?v=udjN9xyW6MA – Did you manage to solve it?
Yes, I know the bridge that I drew (I’m ever so brilliant at art, aren’t I?) isn’t long. Just imagine that it is and carry on with the riddle!
Pause the video whenever you need to, to take down the details. The solution is quite simple and you just need to put your mind to it. NO CHEATING!! Try and find the fastest time you can come up with before you start searching the web for solutions.
Have Fun! 😀