Showing Sequential Layers with Single Button

Hi, Brian.

I'm hopeful some of our talented members can give you other ideas, but here are a couple of suggestions:

1. Using a transparent shape (right-click the shape, choose Format Shape, then change the transparency to 100%) on each layer, that, when clicked, will open the next one. You can then have the shape on the last layer (Answer2) hide the layer instead. 
2. Using variables - each time the image on the base layer is clicked, you adjust the variable to add 1 to its value. Then you add triggers to open each layer when the image is clicked, depending on the value of the variable:
   • If variable = 1, show layer Question
   • If variable = 2, show layer Answer1
   • If variable = 3, show layer Answer2
   • If variable = 4, hide layer Answer2 and re-set variable to 0.

I am attaching both examples here, and hopefully, they'll give you an idea of where to go next.