Solve The below Equation:

ALFA + BETA + GAMA = DELTA

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

Can you make the below equation true by using any three numbers from "1, 3, 5, 7, 9, 11, 13 and 15"?

( ) + ( ) + ( ) = 30

It's a 7-letter word.
If we remove 1 letter from it, it remains the same.
If we remove 2 letters from it, it remains the same.
If we remove 3 letters from it, it remains the same.
If we remove all the letters from it, still it remains the same.
What is it?

Replace the question mark with the correct number below.

How can you make a TV, a bed, a dog, and a car liquid?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?

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?

Below rebus represent famous DiCaprio movie. Can you name it?

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?