I make original puzzles for treasure hunts for every time my kids have a birthday. Here's an easy one telling you where to find the next clue.
What you do is, cross out three of a kind- either three of the same shape, the same colour or the same letter- you can cross things out vertically, horizontally or diagonally in any direction and you can cross something out more than once. The remaining squares make a shape that tells you where to find the next clue.
It could mean several things so the next clue could be in several places but I originally meant it to lead to a beverage.