What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

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

A hen, a dog, and a cat are stolen. Three suspects are arrested named Robin, Steve, and Tim. The police are sure that all of them stole one of the animals but they don't know who stole which animal.

Sherlock Holmes is appointed to identify and is provided with the following statements from the investigation.

Robin - Tim stole the hen
Steve - Tim stole the dog
Tim - Both Robin and Steve are lying. I neither stole a hen nor a dog.

Sherlock is somehow able to deduce that the man who stole the cat is telling a lie and the man who stole the hen is telling truth.

Can you help him find out who stole which animal?

How many times do a clock's hands overlap in a day ?

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

why number 8549176320 is one of a kind?

What are the next two letters in the following series and why?
W A T N T L I T F S _ _

*Hint: Check Puzzle Title

Can you name some countries which do not have the alphabet 'A' in them?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?