1. "Why did the surveyor get lost in the forest? Because he didn't have a good sense of direction!" This pun plays on the surveyor's role in measuring and mapping land, and the fact that someone who is lost lacks direction.
2. "The surveyor was feeling under the weather, so he decided to take a rain check on his job." This pun uses the word "rain check" in a double meaning. It references a postponed event (the surveying job) and also plays on the idea of rain affecting weather and potentially causing a surveying job to be delayed.