Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
How can I make a new Tag on Puzzling Beta ?
I was doing some Knights and Knave Puzzles by Smullyan and was slightly disappointed that there was no tag to differentiate these puzzles from the others ...
There actually is a tag for this: the liars tag, now synonymised with the knights-and-knaves tag. This is the tag to use for your questions.
As informed by @CoolGuy in the comments , One can only make tags only if you have a reputation of at least 150