There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Birbal was jester, counsellor, and fool to the great Moghul emperor, Akbar.
The villagers loved to talk of Birbal's wisdom and cleverness,
and the emperor loved to try to outsmart him.
One day Akbar (emperor) drew a line across the floor.
"Birbal," he ordered, "you must make this line shorter, but you cannot erase any bit of it."
Everyone present thought the emperor had finally outsmarted Birbal.
It was clearly an impossible task.
Yet within moments the emperor and everyone else present had to agree that Birbal had made the line shorter without erasing any of it.
How could this be?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

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

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?