I already know I can post a question only once in 40 minutes. At least, I got this message from the system when I tried to post a second question in a period of 40 minutes.
But, besides that, aren't there some particular limits for the number of questions, or answers, or comments? I would be glad to know how many I can post during one single day. I will not use that limit completely, of course; I'm just curious.