What does this rebus means ?

PROG WORKRESS

Can you solve below mathematical equation?

2^1234 - 2^1233

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

How many triangles are there in the picture below?

Take one out and scratch my head, I am now black but once was red. What am I?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What can you see in the middle of March and April that you can never see in any other month?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.