Magnets Game Help Needed

So I started my game but i still have some questions.
1) adding text: i know i can but i couldnt figure out how and how to place them
2) adding new tile set: i tried but they were too small or too big for the game. i think the ideal tileset would be like crash course one. but i dont know its dimensions.
3) adding the properties of magnets: is there any way i can show how magnets work and stuff.
4) adding a mini game between levels: i want to add a simple puzzle game between levels to continue to next level but i doont know how to do it.

1. ) First import a fount, you can grab one off Stencyl Forge  if you like.  Have your game open when you download it and I think it imports straight into your game. Set a color and size for the fount. You will put all your printing  blocks inside of a When Drawing event. Basically you  need to set current fount(even with only one fount) and then use the drawing blocks in the designer palette to enter the text to draw and the x,y where the first character should be drawn.
2.) Most common  tiles are 16x16 or 32x32. If you like the crash course tile go  open your cc project and look at scene properties and you will see the tile size .
3.) There are probably many different ways to do this, but I would recommend  what I believe is the simplest. You create an actor for your magnet but it would not contain any of the logic to show properties of magnets. You would show how certain objects are affected  by the magnet, and these objects would contain all the logic of how they should react with the magnet.  There is a pretty good simulation demo game for gravitational fields on Stencyl Forge that would be somewhat similar to magnetic fields.  "Teaching Demo  - (Level 7)" have a look and see if you can pickup some ideas on how to approach your subject.
4.) By the time you get 1 - 3 sorted out, you will probably  not need any help on this!