If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Find out the missing number in the picture attached:

Teacher ask the student

'Why are you standing on that chair in music class ?'.

what did student replied ?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

I shave every day, but my beard stays the same. What am I?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

What can you see in the middle of March and April that you can never see in any other month?

A convention is held where all the big logicians are summoned. The master places a band on everyone's forehead. Now all of them can see others bands but can't see his own. Then they are told that there are different colours of bands. All the logicians sit in circle and they are further explained that a bell will ring at regular intervals. The moment when a logician knew the colour of band on his forehead, he will leave at the next bell. If anyone leaves at the wrong bell, he will be disqualified.

The master assures the logicians that the puzzle will not be impossible for anyone of them. How will the logicians manage ?