keeping track of random text generated

what I wanted to do:
I have 24 questions that include three components: 1. A fixed language 2.a randomly selected image from a pool of 36, and 3. a randomly selected word from from a pool of 6 that would appear below the image.
For every question, I want to create a combination of random image and random word, and also keep track of the image and word used for that question. How should I do it?
I was able to do it with javascript + html trick to generate random text. But I couldn't figure out a way to 1. randomly select images and 2. keep track of the random selections (I heard I need to use embedded data but the online tutorial does not directly address what I need). Thank you very much.