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

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible?

PS: It has a logical answer.

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

How can you take 2 from 5 and leave 4?

Find out which of the given views in the picture is accurately the top view of the given pyramid.

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.