Picture Riddles

In the four images below, can you find the odd one out?

Spot 5 differences in two Christmas tree below:

Which of the below owl is odd one out?

Count the number of balls in picture below:

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

What do you see in the given picture?

You can see three almost identical images below. Can you spot the odd one out from them?

You have to fill the below given grid in a manner that every row and column contains the digits 1 to 6. Also, make sure that the squares that are connected with each other must contains the same digit.

Can you place six X (crosses) in below board without making three in a row in any way ?