Find out the number of circles in the given picture having Illusion

Which tank will fill first?

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

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

Remove two matchsticks to make the below equation correct.

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

Spot what is wrong here in below Picture?

Spot 5 differences in two Christmas tree below:

Can you find out the missing number in the grid?

Can you count the number of squares in the given picture?