1.  Stare at the center (plus sign), and the "missing dot" becomes a green dot that erases all the pink dots

2.  Both the yellow and blue rectangles are moving at the same speed

3.  Stare at the green dot for some time and the yellow dots will disappear

4.  Ummmm... is she moving clockwise or anticlockwise? It's really tricky

5.  Is the train going in or out of the tunnel?

6.  This grey bar never changes its colour

7.  Neither does the piece of paper which the lady lifts

8.  Is it a "No" or a "Yes"?

9.  This one's self explanatory

10.  The surface of both A and B are of the same colour. You can check it yourself by placing your finger where both A and B meet

12.  Did he just sit in that chair?

13.  Did you just see a colourful black and white picture?

14.  The motion of the line is the same. Is it?

15.  Size or perspective? You decide

16.  Wait... Where are the "Laws of conservation"?