Yes. Apparently, someone with the ability to create tags thought this might be a possibility, as there is the situation tag. I feel it is a good argument that if this site has a tag for a particular type of question, then that type of question must be allowed; otherwise, we have a contradiction where the site allows one to tag a particular type of question that shouldn't be asked in the first place. This is a misleading situation at best.
Further, many riddles require some clarification, whether they solicit "yes or no" questions or not, and many riddles can have multiple answers if one simply uses a certain amount of imagination. This is consistent with the principle behind situation riddles.
If one argues that this site should have one and only one answer and the question and answer should be clear, then you still get that with situation riddles if you just read the comments, chat and answers. Combined you have the full details and rationale for both question and answer.
This site is a little unlike other stackexchange sites in that the questions are meant to provide entertainment in a challenging and unique way. They aren't supposed to contain encyclopedic knowledge where precision is more paramount.