well, i did't understand very well how you picture the gameplay but it looks like is about correct choice and wrong choice, so a few things to help you start:
forget about arrays (for now); the concept of arrays helps but only if you know how it works and how to apply to your project. stick with the basic and simple logic.
now lets think about your concept
start making the choices; write or wrong answers, with the mechanic you want (shooting on then)
put down the possible questions and the correct answers
now you can make the set of questions a unique sprite with lets say, 20 questions and each question a frame of the same sprite
make the same thing with the answers (each frame a answer)and then compare the question frame with the answer frame
for the randomness you can make the sprite with random frame at the start of the layout, this way is a simple progamming pick random frame;
ps: using this metod you have to make sure that it will be always a right answer to choose and diferent questions on each column. you can do this using variables
this is not very polish but i hope this give you a starting point :]