What word begins and ends with an E, but has only one letter?

What is wrong in the below Picture?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

Akbar summoned Birbal out of anger.
He told him that he will have to face death.
He asked him to make a statement and if the statement is true he will be buried alive and if the statement is false, he will be thrown at lions.
After hearing Birbal’s statement, Akbar could do nothing but smile.
He gave him 5 gold bars and let him go.

What did Birbal say?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,

What is it?

I have Rs.50 and I spend it in the way as below.

What does this rebus means ?

PROG WORKRESS

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

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.