How to remove a specific node and its child

 <?xml version="1.0"?>
<faq>
<item>
<q>Question 1</q>
<a>Answer 1</a>
</item>

<item>
<q>Question 2</q>
<a>Answer 2</a>
</item>

<item>
<q>Question 4</q>
<a>Answer 4</a>
</item>

</faq>

Hi all,

My requirement is to remove only two <item > tags and the child nodes under it 

has anyone tried it before 

?

Thank you.