<blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="http://meta.stackexchange.com/questions/81681/why-dont-i-see-an-edit-button-under-questions">Why don't I see an edit button under questions?</a> </p> </blockquote> <p>Why is this <a href="http://stackoverflow.com/questions/5426331/how-to-check-if-a-tab-is-clicked">post</a> not editable?? It is not lock as I can see?</p> <p><img src="https://i.sstatic.net/lTXHN.png" alt="enter image description here"></p>