Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

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?

Name one eight-letter word with 'kst' in the middle, 'in' the beginning, 'and' at the end.?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?

How many words can a pen with half refill write?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

There is something which is always coming but never arrives?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

The more you take me, the more you leave me behind.
Who Am I?