You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Can you write down eight eights so that they add up to one thousand?

How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

What English word has three consecutive double letters?