I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

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.

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

There was a kingdom in which the king had no heir to take over his thrown. Even the queen was dead and he himself was on the verge of dying. He thought about it and then summoned all of the teenagers. He gave one seed each to all of them and asked them to grow the plant. He announced that the one with the most beautiful plant will become the king/queen of the empire after the death of the king.

After a month, all of them were called. The king looked at all of the plants but announced the girl with an empty pot as the queen of the empire. Why?

Can you find the key in the picture below?

What number comes next in this sequence:
7 8 5 5 3 4 4 _

If eleven plus two equals one, what does nine plus five equal?

How do you go from 98 to 720 using just one letter?

Take away the whole and some still remain. What is it?