No one wants to have it, but if one got it, he does not want to lose it. What is It?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

The doctor prescribed you to take one pill from the bottle every half an hour. The bottle is now left with only three pills.

How long do you think you have before you run out of pills?

In a rainy season, one day 3 huge ladies walked under a normal-sized umbrella.
The umbrella is not huge enough to accommodate all 3 ladies yet not a single lady got wet. Why?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.