Solve the following series:
AZ, GT, MN, __, YB

What has lots of eyes, but can’t see?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

There are three Athletes (John, Tarun and Harish) and their individual Coaches (Jacob, Meenaxi and Priyanka) standing on the shore.
No Coach trusts their Athlete to be near any other Coach unless they are also with them.
There is a boat that can hold a maximum of two persons.
How can the six people get across the river?

Ten coins have been arranged as you can see in the given picture. In this arrangement, a triangle is formed pointing upwards. You have to invert the position of the triangle and make it point downwards while changing the position of 3 coins only. Can you do it?

Until it is measured, not known. Yet how you miss it when it has gone. What is it?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Who are the happiest people in IPL match?

Who is that with a neck and no head, two arms and no hands? What is it?