I have directory IXNPG7 under which i have seen file ads[1].c , ads[1].gif ,
ads[1].js and lots more with extension .html

I tried to remove the Entire Directory with rm -Rf IXNPG7
but it is saying -- Directory Not empty can't remove

Secondly i tried removing all the files first

using rm *.* inside that directory all files get removed except ads[1].c

i tried to remove using rm -fr ads[1].c --after issuing the command the
rm is silent with out any error,but not able to delete this file ?

1 -- Can you please tell me why the directory is not removed recursively
2-- Why this FILE is not removing ?
3- Some time this directory contains a file whose name more then 1 line of characters and denied removing saying too long file name ?

Please tell me what could be the reason ?

Thanks