Turn 30 that is bad luck. But I remeber that I had imprisoned the nobles but then nothing new come...
The lore of them reminds me somehow of Monty Python and the Holy Grail.
A number of them are Monty Python.
which is par for the course in fantasy TBS games -- expect pop culture references, even if they are from the last century.
As well... you can always 'postpone' the riddles/etc. If you're not ready to go through, you can ignore them (though pop up annoyances galore happens each turn).
The easy way out of the noble line is to pay them off.
There are multiple side choices that give different results for a lot of the pop ups. Some are more/less dangerous than others.