Is "텐가" a question marker?
I looked up "텐가" on Daum's dictionary, but I only get examples. I usually see it at the end of a sentence and it seems to be used for a question. Is it a question marker? How would it be used, and who could you use "텐가" with? Is it the same or similar level as "-니", which is impolite to use with elders? Please give me examples and a lengthy explanation if you can.
Thank you for your patience ^^