Well you can place a question on the screen using images and scripting, and I suppose you could alter the textures of models so it has the answers placed on models.
You cannot execute other programs within FPSC without modifying the source code. You can save results but not send them back.
Well to be honest FPSC would not be the best option, instead i would recommend using dark basic pro, which is available from the game creators. It is a programming language which you would have to learn but you can do all of the above.
Hope that helps!
FireBASIC - The Heart of Great Programming - http://firebasic.ablazegaming.co.uk