What is both possible and impossible at the same time?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

What kind of storm is always in a rush?

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

I have branches, but no fruit, trunk or leaves. What am I?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

You have two buckets - one holds exactly 5 gallons and the other 3 gallons. How can you measure 4 gallons of water into the 5 gallon bucket?

(Assume you have an unlimited supply of water and that there are no measurement markings of any kind on the buckets.)

Why did the Girl throw the butter out of the window?

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?