You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

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

How many letters are in the alphabet?

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

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30 for every bottle box he delivered without breaking it and he will be charged Rs.90 for every bottle box he broke. Jacob gave John 100 bottles-box to deliver. After delivery, Jacob paid John Rs.2400. How many bottles-box did John break?

The more it dries, the wetter it becomes. Can you tell what it is?