What has no start, end, or centre?

In this image, you can see three almost identical Doraemon images. Can you spot the odd one out from them?

A thief enters a store and threatens the clerk, forcing her to open the safe. The clerk says, “The code for the safe is different every day, and if you hurt me you’ll never get the code.” But the thief manages to guess the code on his own. How did he do it?

why number 8549176320 is one of a kind?

How many triangles are there on the puzzle below?

Find the Goldfish below the given Image.

Decode the movie name from the below picture?

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

I am the largest in my family of fifty.
The youngest of our family lives separately from the rest of the family and so do I.
I am regarded as harsh and tough.
I am so large, you cut me in two equal halves,
each half would still be larger than the second largest member of the family.
Who am I?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?