/usr/lib/qt4/demos/ is in qt4-demos 4:4.8.7+dfsg-5ubuntu2.
This file is owned by root:root, with mode 0o755.
There are a lot of files here (730 total). We're only showing the immediate contents of /usr/lib/qt4/demos.
/usr/lib/qt4/demos
..
/usr/lib/qt4/demos/README
/usr/lib/qt4/demos/affine/
/usr/lib/qt4/demos/arthurplugin/
/usr/lib/qt4/demos/books/
/usr/lib/qt4/demos/boxes/
/usr/lib/qt4/demos/chip/
/usr/lib/qt4/demos/composition/
/usr/lib/qt4/demos/declarative/
/usr/lib/qt4/demos/deform/
/usr/lib/qt4/demos/demos-manifest.xml
/usr/lib/qt4/demos/demos.pro
/usr/lib/qt4/demos/embeddeddialogs/
/usr/lib/qt4/demos/glhypnotizer/
/usr/lib/qt4/demos/gradients/
/usr/lib/qt4/demos/helper/
/usr/lib/qt4/demos/interview/
/usr/lib/qt4/demos/mainwindow/
/usr/lib/qt4/demos/pathstroke/
/usr/lib/qt4/demos/qtdemo/
/usr/lib/qt4/demos/shared/
/usr/lib/qt4/demos/spreadsheet/
/usr/lib/qt4/demos/sqlbrowser/
/usr/lib/qt4/demos/sub-attaq/
/usr/lib/qt4/demos/textedit/
/usr/lib/qt4/demos/undo/