Find the hidden balls in the box by bouncing laser beams off them.
Connect all the islands with a network of bridges.
Pick up all the blue squares by rolling the cube over them.
Tile the rectangle with a full set of dominoes.
Slide the tiles around to arrange them into order.
Mark every square with the area of its containing region.
Flip groups of squares to light them all up at once.
Divide the grid into rotationally symmetric regions each centred on a dot.
Guess the hidden combination of colours.
Collect all the gems without running into any of the mines.