Reddit reviews Riddle Rooms #1: Dungeon Dilemmas

So... I love this stuff, but I am terrible at it. Even knowing the "rules" for making puzzles & riddles, I still cannot make them. My brain just has no ability here, I guess. However, I have a crutch that I use: I buy books of this stuff. Lots & lots of them. Some are even made specifically for D&D. Allow me to link you to some of the things I've bought.

• Shadowman's Twisted Treasury: A Collection of Killer Puzzles. This is actual puzzles, not riddles. If you buy this, you may find puzzle #6 to be obnoxious. Odds of solving it are low in the first place, but if you do, you'll find yourself wondering why a sign was broken apart in such a ridiculous way. Just explaining why/how the puzzle got there in the first place is a problem. However, other puzzles are better. There are simple ones like an ogre counting image which shows a password, if you just pay attention to it. There are difficult but clever ones, like the "as easy as 1-2-3" floor tile puzzle, which is similar to the "Amenuator" floor tile puzzle in Baldur's Gate 2. In the back is some text explaining how you could incorporate it into a D&D/Pathfinder game. It has about 30 puzzles, and gives 3 hints for each. I typically give 1 hint to each player with a character who has an INT score of 13 or more. I give an extra hint for 15+ INT. I give the 3rd hint for 17+ INT. I rate this 7 out of 10.
  
• Riddle Rooms. This is a hybrid. It contains riddles, which then reveal how to deal with a puzzle. Each is presented twice -- first half of the book discusses the puzzles in text form, 2nd half of the book has little 1" maps of the rooms that your players could play on. My favorite is the hall of flame, where jets of fire spout out of the floor -- yet some jets are merely illusions you can walk through, and if you figure out the riddle, you can walk right across the room safely. However, I found that riddle to be too convoluted -- it displays the riddle mirror-imaged, so all the hints you get must be reversed. I thought it too much of a bother, so I set the riddle "right" and allowed the players to proceed safely if they solved it without needing to reverse the directions. I rate this 6 out of 10.
  
• Quest for the Riddle Stone. This is my favorite. I rate it 8 out of 10. However, it's actually just riddles, not puzzles. Each page contains a poem/limerick, along with 3 hints for solving it. About half the riddles are inappropriate for a D&D game, because they reference modern music, automobiles, etc. However, the ones that work are great. Here's one:
  
  I demand top regard, seeking first prize.
  
  I'm gone ere the fall and shunned by the wise.
  
  Whatever you do, I'll claim you do more.
  
  To find me just look where the lions roar.
  
  Anyway, this is going on too long already. I'll attach more links in a reply.

http://www.amazon.com/Riddle-Rooms-1-Dungeon-Dilemmas/dp/1928807011/ref=sr_1_1?s=books&ie=UTF8&qid=1417038427&sr=1-1&keywords=dungeon+riddles

Tons of great encounters where level doesn't matter. I would suggest the "shadow imp" one. He locks the players in a seemingly normal room. He pokes them for damage if they don't keep trying to solve the puzzle. He's invincible moves at the speed of light, he's basically a God of msichief. You have to solve a series of riddles and figure things out to get the key to open the door. Players are teleported into the room with essentially only their underwear and are ejected before they die.

There are bunch of magic items they can retrieve from the puzzle room.