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

Where do you go to learn how to make ice cream?

Forwards I am heavy, backward I am not. What am I?

What is the last thing you take off before bed?

How is a fly different from a mosquito?

What can you hold in your right hand, but never in your left hand?

Which letter of the alphabet has the most water?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

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.

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?