Sort of. You can see though sys.dm_exec_requests executing a RECEIVE statement (including a WAITFOR RECEIVE). By simply peeking into the the currently executing text sys.dm_exec_sql_text(sql_handle) between the statement_start_offset and statement_end_offset you can see if the statement is RECEIVE or not (with some parsing...). Figuring out if an active transaction has issued a RECEIVE and is now processing returned messages is more complicated. 

Is somehow of an unusual request, why do you need to know?

How many connections reads queue
My brother brought something to my attention earlier this morning and I cannot find the answer with just a googling to end the argument, so I have come to you to ask and understand.

(0! 0! 0!) = n

He says that n is 6. I say that n is 1.

My reasoning: 0!=1 so 1x1x1=1

His reasoning: He won't explain it because he doesn't want to argue about it anymore, but he did mention something about absolute value, which didn't make sense because I saw no || anywhere in the equation.

I don't care who's right. I just want to know what the right answer is and how this equation is solved.

UPDATE:
So, since I spoke to him and showed him what all of you said, he said that the equation was actually (0!+0!+0!)!=6, which means that what was written on the piece of paper that he had given me was written in error.
