This might be one of the more easier solutions:
Prerequisite: A windows computer that is always on, to host the Trivia program.
- Download mIRC (a Windows client used to connect to IRC)
- Connect to a random network, maybe best to connect to one with more than one server for redundancy. mIRC comes with a list of networks and servers built in.
- When you join a channel that is empty, you are basically creating it. As long as you have someone in it at all times (such as the trivia bot in the next step) it remains open.
- Download the Tat's Triva Bot addon for mIRC and run it on the same computer. Preferably, you would need a computer on all the time to ensure other people could always connect and play trivia.
You can edit the trivia questions to your liking. Simply provide the server address and the channel name to anyone who wanted to play along. They would of course need a client installed on their computer in order to connect, such as mIRC mentioned previously.
Alternatively, if you wanted to go down the route of creating your own IRC Network from scratch with your own domain name then it gets a little bit more complicated.