(Originally on
comp.lang.perl.misc, but may have spread):
A
question which answers itself. A sure sign that the
questioner is
too lazy to think or open the
manual or a
book. Also common on
perlmonks, the
archetypical self-answering question is "
How do I find the length of a string?".
Non-Perlers might not be aware that length STRING returns the length of a string. The question manages to contain its own answer; it is impossible to manage not to find it!