1. How do you make a dungeon challenging besides throwing monsters in it?
2. Where do you get ideas for clever traps, and how do you get around the rogue that checks for traps every time they're in a room?
3. Do you let players do the optional "take the 20" rule where they search for a long period of time and get an automatic success on, say, search checks?
4. If you use riddles, what do you do for the group that doesn't like to think as players, and wants to use their character's intelligence score to solve the riddle instead of solving it themselves?
5. How do you incorporate good monsters into your campaign (if your party is good aligned)?
6. How do you make an NPC/long-term villain terrifying to the players without killing one of them, especially when they all act fearless?
7. In dungeons, do you draw a map for your players as the DM while they're going through the dungeon (or if you're a player, does the DM do this for you), is there a player that draws the maps, or do you run dungeons where they just randomly go left and right without a map guiding them? How do you incorporate visuals into the concepts of a dungeon if you don't provide the players with an ongoing map/drawing of the rooms they enter?
8. Have you ever had a PC roleplay falling in love with an NPC? (This wasn't planned, but this instance is starting to happen between one of my PCs and an NPC I have through his clever use of roleplaying, and I like encouraging roleplaying, so I want to try to encourage this.) What have you done if you had this scenario?
9. How do you handle when the group splits up?
Thanks for your input in advance!