Can you write down eight eights so that they add up to one thousand?

What Adam and Eve do not have but the rest of the people have?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

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

What is at the end of a rainbow?

Replace the question mark with the correct number.

Complete the table series riddle by finding the number that can replace "??".

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?