It all depends on the question. There are questions on the site that have never been answered, and some may be answered right away. More difficult or technical questions may take longer until someone comes along who is able to answer them. Be patient.
Until someone with nothing better to do makes a remark.
Just hold on you will get an answer in good time/
About six inches should do it, mate.
It can be seconds or hours or even days for it to be answered.
Well until someone who finds your questions interesting decide to answer it with the best information that they can find.
Some Blurters only answer what one might call "an easy question" other Blurters prefer to answer the more difficult questions.
It took me about a second to click on it after seeing it. Then, about five seconds to type this. :)
It depends on the question it may take sometimes more than a year to answer a question!