Which of the below owl is odd one out?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Using eight eights and addition only, can you make 1000?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Replace the question mark with the correct number in below Picture:

Can you count the number of lines in the below picture?

What has many keys but can’t open a single lock?

As we know that white starts the game of chess. Can you find the scenario shown in the picture below is possible when all the white pieces are at the original place while the black pawn is not as in the below picture?

There is a movie name hidden in the picture that is attached with this question. Can you find out which movie is it?

If eleven plus two equals one, what does nine plus five equal?