User blog comment:AdorableEspurr193/If you solve this riddle, your IQ is very high/@comment-28439145-20171213185353

Since nobody is getting it, here's the correct answer:

The most troubling figure here is the random one, so it makes sense for you to figure out who they are first. To do this, you need to either identify Random, or identify a figure who isn't Random. In order to do so, you should ask a question that Random will answer differently than Truth and Lie. Since Random's answers are random, Truth and Lie do not know what answer Random will give to any question, so you need to ask any figure "If I asked Random a question, would Random lie?" If the figure doesn't answer, they aren't Random, because they don't know. If they are Random, they will answer, because they know. If you don't get an answer the first time, ask the second figure, and if they don't answer as well, don't waste your final question because you know for sure that the third figure is Random.

Also, it appears I've made a mistake. You have 3 questions, but you can ask the same figure twice. Sorry :( I'll give you some time to try and figure the rest out.