What kind of storm is always in a rush?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

That attorney is my brother, testified the accountant.

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

Who is lying?

A father's child, a mother's child, yet no one's son.

Who am I?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

What is the fastest way to double your money?