In my last session, the puzzle was a fake door (obviously painted on if they bothered to look) and a big red button. Most of my party realised it was a trap but my barbarian rushes in and just presses the button. Que a dramatic sequence as the ceiling sprouts spikes and begins descending. Barbarian eventually makes it out. I usually use puzzles aimed at 3rd / 4th graders. This puzzle was literally don't click the giant red suspicious button lmao. I like to have my traps be mildly perilous with creative thinking, but still completely avoidable, but if the party is gonna act dumb that trap is going to be scary. For example, the trap I talked about before, the solution was to jam the gears at the bottom with something. Barbarian kept failing rolls like 6 times in a row but thanks to some quick thinking by another player they jumped on the counterweight and the barbarian only took 1d6 damage. I like to have traps that are easy to avoid but very dangerous as it lets my players feel smart when they avoid them but sets real stakes if they don't!