What does below rebus means ?

A sundial has the fewest moving parts of any timepiece. Which has the most?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Three friends named Mr. Black, Mr. Yellow and Mr. Green enter a pub on a weekend night. They are wearing either a Black, Yellow or Green shirt.

Mr. Yellow says to them, 'Did you notice that we all are wearing different color shirts than our names?'

To this, the man who was wearing the Green shirt said. 'Wow, thats right.'

Can you identify who is wearing which colour shirt ?

Imagine you are in a room with no windows or doors. How will you get out?

Rearrange the letters in "new door" to make one word.

10+10 and 11+11 can give you the same answer.

Explain how?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

I am a five-letter word and comprises two different vowels and three same consonants. I am so strong that I can spoil your entire work.

Can you find out who am I?