Irene killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?

Queen Elizabeth organised a royal party.

To Avoid uninvited guest royal family set a password.
Jack (an uninvited person) plan to enter the party. He stand nearby the door.

First guest comes, the security person said 'twelve' and guest replied with six.
Second guest comes , the security person said 'six' and guest replied with 'three'.

Jack thought is enough and he walked to the entry point. The security person said 'eight' , Jack replied smilingly 'four'.
He was immediately thrown out of the party. why ?

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

Why 1729 is a magic number? Answer Logically.

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

I got a bee but no honey.
got an eye but am still blind.
got a sea but no water.
got a tea but no coffee.
got a why but no answer.

What Am I?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?