What to do if you cannot execute CHMOD?

If you just ran 'chmod -x /bin/chmod'. What to do? How to recover it?
 
If you have just removed execute permission on chmod (/bin/chmod).
So that now you cannot modify file permissions. Not even for chmod itself .
chmod remains useless on your system.

Here is the solution for the problem.

Run the below commands whichever works in your server.

sudo /lib/ld-linux.so.2 /bin/chmod 755 /bin/