Please provide the correct Linux (Ubuntu) command to carry out the following (for user "test"):
1. Change permissions for file "document.txt", with read and write permissions for owner, group and other, but no execute permissions.
2. Change permissions for file "script.sh" with read and execute permissions for group and other, and full read, write and execute permissions for the owner.
3. Change permissions for hidden file "test", owned by root, that has root read, write and execute permissions only, no other permissions set.
4. Provide command to create symbolic link with an absolute path to the system log "/var/log/auth.log".
5. Change permissions for directory "test" with the owner having full permissions to create, rename or delete files in the directory, list files and enter the directory. Group and other having permissions to only list files and enter the directory and access files within.