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

What is the difference between a jeweller and a jailer?

There are 3 apples in the basket and you take away 2. How many apples do you have now?

What is the centre of gravity?

He loves to dance, twist and prance, he shakes his tail, and as a way he sails, wingless he flies into the sky. What is he?

How can a man go eight days without sleep?

What has many teeth, but cannot bite?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

Why Wine Glass Stem is so long?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?