How is a fly different from a mosquito?

When it's bad luck to meet a black cat?

Bay of Bengal is in which state?

How can a man go eight days without sleep?

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?

Can you solve the below algebraic mathematical equation?

(J+O+I+N+T)3 = JOINT

There are forty elephants and they have forty-fore heads. How can this be possible?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

How can you tell a raw egg from a hard-boiled egg?

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.