title: Using LINQ in ICollection (EF)
body: <p><br/>
  It happends that in EF you must use ICollection for your properties,
  <br/></p>
  
  <pre><code>eg. public virtual ICollection&lt;Question&gt; Questions { get; set; }
  </code></pre>
  
  <p>But I wan't to use LINQ on that list, which is not possible in ICollection.<br/>
  Should I cast it to IQueryable? How? or what is the standard way to achieve this?</p>