I have read this topic, which gave me some info but I feel I am not fully getting it. What does the execute permission actually means on a folder? I fully understand what it means on a file, but on a folder...Sorry if that is a RTFM question. I have looked into it, I swear. This is what I found there : x : execute/search only if the file is a directory   or already has execute permission for some user (X)Any clarification is much appreciated. 
What does execute permission on a folder means?
permissions;directory;chmod
With the execute bit set you have the permission to cd into the directoryAlso for long listing ls -l i.e. to view the meta data of the files inside the directory (Provided that read permission is there for the directory.