The speech has to be in first person and in the speech you cant tell who Hades is, you have to give informaton about him, and your last sentence on the speech should be "who am i?" the speech should be about 3 minutes long.
There is much that can be done with this task. In the end, I think that the best way to go about this is to collect a variety of facts about Hades and use it as a way to build the "Who Am I" aspect of the speech. For example, lines such as "Souls can check in any time they like, but I am angered if they try to leave," can be a great way to talk about the underworld domain of Hades (And integrate a song by the Eagles in the process.) Additionally, another similar line could be, "I had to obtain permission to marry my wife," and "While she stays with me, others endure cold and changes." This could be a manner to talk about the marriage of Hades and Persephone. I think that you could also make reference as to how only a handful of living people have ever travelled and left the underworld (Heracles, Orpheus, amongst others.) I think that this might be a good approach to writing this speech.