Illustrative Mathematics
Illustrative Mathematics: Toll Bridge Puzzle
You are on a trip and need to cross a bridge, but you have to pay tolls in coins. Solve this puzzle by making your way to the island only using 100 coins.
TED Talks
Ted: Ted Ed: Can You Solve the River Crossing Riddle?
As a wildfire rages through the grasslands, three lions and three wildebeest flee for their lives. To escape the inferno, they must cross over to the left bank of a crocodile-infested river. Can you help them figure out how to get across...
ABCya
Ab Cya: Pixo Cross
Pixo Cross is an addicting puzzle game for the whole family! Your goal is to reveal the hidden picture in each level. Simply, click to fill the cells in the level. There are numbers placed along the outside of the puzzle that tells you...
Mathigon
Mathigon: Graphs and Networks: Planar Graphs
Here is another puzzle that is related to graph theory. In a small village there are three utility plants producing water, electricity and gas respectively. There are also three houses which need to be served. Unfortunately, due to the...