Can you replace the question mark with the correct number?

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

What is it?

A thief is convicted in Mexico. He gets the death penalty. The judge allows him to say the last sentence to determine how the penalty will be carried out. If the thief lies, he will be hanged, if he speaks the truth he will be beheaded. The thief tells the last sentence and to everybody's surprise some minutes later he is set free because the judge cannot determine his penalty. What did the thief say?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Alpha is Beta's sister.

Gamma is a Beta mother.

Delta is Gamma's father.

Tango is Delta's mother.

Then,

How is Alpha related to Delta?

There was an aeroplane crash, every single person died, but two people survived. How is this possible?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?