I need some help with a game show like battle

The campaign I'm part of involves dimension hopping to different fandoms, and sometimes our DM gives control of a world to a player if they know the world better. Right now, we are in the world of Legend of Zelda and I'm in control and the players are going to a past version of Arbiter's Grounds, the mini-boss of the dungeon isn't going to be combat focused and is instead in the form of a quiz show. I know that the players plus the host of the show are going to roll initiative for the turn order to answer questions and I know when someone gets a question right that they will be safe. What I don't know is how many chances each player should get and if they either take damage from the host or get knocked unconscious if they fail, and also how they can get help if they absolutely need it (I'm going to give them one opportunity to call for help, but I don't know if that means I give a hint or another player answers) Anyway ideas for what I should do?

I also need some help for what a player should do if a spirit or demon of some kind is tempting them to become evil, and what I should do on my end with the creature, and if they players fail the test.

Any ideas are welcome!