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

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

If 21x = 79x, what is the value of x?

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?

I am sure no one can have two things for dinner. what are they?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

A landlord calls both of his sons and tells them that their horses will now decide who will transfer the inheritance. He tells them to race along the land till the end and the one whose horse will be slower will win and be the heir to all the property.

Both of them keep wandering for days but to no result. Then they ask a wise man regarding it. The man advises them on the matter after which they jump on the horses and race as fast as they can till the end. Why did they do it?

What did the wise man say?

What demands an answer, but asks no questions

Why is Saturday stronger than Monday?