Which wheel of car does not rotate when you turn your car right?

Can you move 2 matchsticks to form four equal sized squares.

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

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

Find the last number in the series below:

voN luJ yaM raM ---

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

I am a word of 12 alphabets.

* Alphabets 12, 4, 7, 2, 5 : Eastern beast of burden
* Alphabets 1, 8, 10, 9 are street made famous by Sinclair Lewis.
* Alphabets 11, 3, 6 are past.

On whole it means a person suffering from delusions of greatness.

What Is it ?

Why do people go to bed?