Welcome to Level 11.

Spoiler:

Like we always do,check the source page.

Hint we will get is :
1.The Title : "Numerals?" Google it.Important !
2.Picture : "screenxi.jpg" (Oh man.You must notice it !)

First of all google what is means by "numerals".
Second see the picture properly.At the picture have hidden number.Close your one eyes.You will see it !

If you stuck click spoiler :

Spoiler:

You already got the "hidden" number on the picture.
If you think the number is the answer you absolutely wrong.
You must convert the number to "Numerals".
Google it.


Still stuck ? Click spoiler :

Spoiler:

So you already have the real answer.
What to do next ?

Just put the answer to URL.

Stuck ? Click spoiler :

Spoiler: