Well, I guess that is possible but quite unlikely. Orcs naturally spawn in levels 4/5 and their base defense is 3. Meaning that if you hit em with a 9, they'll still take 6. They do get 2 skills which can increase the defense by 5+5 in worst case scenario (2 skills in 26 doing so, meaning ~7% chance per skill pick). So technically you can face one with defense of 13 but at that level you already _should_ have some (of course luck still depends here too) gear to boost your stats etc.
But if it was a question mark node from the map, those can be anything, even bosses...