So while answering a question, I found a bug which allows you to guess without losing a try.
If you type in "24^" instead of "24", for one second, it'll show your answer as incorrect/correct, then refreshes and shows "answer must be an integer", leaving you with the same number of tries as you had before. This allows you to check if your answer is incorrect/correct without losing a try.
This is not that major of a bug since the refresh rate is quite slow, but it can be exploited.It'll be great if Brilliant fixes this. :D