Personally, most of the challenges I see tend to comprise of the kinda basic "Jump on each platform and avoid falling into the Lava/Poison/Abyss/whatever"
They tend to change in shape a bit, here and there, but they're generally the same old, same old.
Someone needs to make a proper 'challenge' challenge. Like, lateral thinking, sort of 'puzzle-based' to make it more interesting than just crossing a stream of undulo lava.