I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

Replace the question mark with the number below given a simple math problem.

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?

This puzzle is for Harry Potter fans. Do you know why Tom Riddle is called Lord Voldemort?

ENEMY = 2 * LINK
LINK + 2 = HELL

Then what will be TAXI + HELL? Select from the options below:
a) ROTTEN
b) DANGER
c) HEAVEN
4) MORTAL

'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?

There are forty elephants and they have forty-fore heads. How can this be possible?

If I put in one bird per cage, I have one bird too many. If I put in two bird per cage, I have one cage too many. How many cages and birds do I have?

Can you name an animal whose killing cannot be performed without spilling your own blood?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?