Was reading a bunch of them and saw a bunch of comments on one where you are sentenced to die and get to choose between a room filled with raging fires, a room full of armed murderers, and a room with lions that haven't eaten in three years
They pointed out that the murderer room would be better because they likely wouldn't have any qualms with you and you could organize a huge escape with them, while the lion room would lead to you starving to death
I can just imagine the riddle giver flipping out and telling them no :D