Spot what is wrong here in below Picture?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

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

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?

Can you count the number of triangles in the given figure?

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

Can you find out the total number of triangles in the given figure?

Identify the 10 differences between the two given pictures.

Move four matchsticks to the below square to form three squares?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?