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

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

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

I have eight fingers and two thumbs but I do not live. What Am I?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?

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

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

What is it?

What goes up but never comes down?

Which English verb becomes past tense just by rearranging the letters?

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?