Prove that twice of ten is the same as twice of eleven.

Can you solve the below rebus?

A man embarked on a questionnaire game. He kept asking the same question to whomever he found. The answer each time was different.

Can you guess what the question was?

What kind of band never plays music?

I look at you, you look at me, I raise my right, you raise your left. What am I?

A man died, leaving $10,000,000 for his widow, 5 sons and 4 daughters. Each daughter received an equal amount, each son received twice as much as a daughter, and the widow received three times as much as a son.

How much did the widow receive?

2, 3, 5, 9, 17, _ What is the next number in the sequence?

What demands an answer, but asks no questions

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

With the help clues provided in the image, can you find the 5 digit key?