I am running a custom campaign and I have run into an issue. The group got to a quest where the ruler of the country is dying of old age and a has no heir. So someone needs to prove themselves to both the Orcs and the Elves. They took on the Orc physical challenge with no problem, but I have no idea what mental challenge to throw at them when they reach the Elves.
The Orc challenge was more or less straight forward. They got to the main camp of the orcs and had to challenge the Orc Warlord to a physical fight. The only thing that wasn't quite what it seemed was the there was a huge warrior orc in the middle of the tent training, the Warlord was sitting on the ground in the back watching. After a while they figured out who the Warlord was. I am hoping for a mental challenge similar to this, seeming straight forward, with a slight twist.