Spot what is wrong here in below Picture?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

When can we add 2 to 11 and get 1 as the correct answer?

Can you find out the remainder when 3^300 is divided by 5?

One fine day, an intellectual man came to the emperor's court with the aim of testing Birbal's wittiness. In order to do this, he challenged Birbal to answer his question and hence prove that he was as intelligent and witty as he was said to be.
He asked Birbal, Do you want me to ask one difficult question or a hundred easy ones?
Since both Akbar and Birbal had had a tough day and were eager to leave, Birbal hastily told the intellectual to ask him a single difficult question.
Intellectual: OK. Tell me what came first into the world, the egg or the chicken?
Of course, the chicken, Birbal replied with a smile.
This time with a note of victory in his voice, the intellectual asked Birbal, How will you demonstrate that?
What did Birbal say?

What goes up but never comes down?

Which is faster, Heat or Cold ? Explain.

You bought me for dinner but never eat me. What am I?

When it's bad luck to meet a black cat?