What are the five permanent members of the UN Security Council?

a) France, Germany, Italy, Japan, United Kingdom
b) Canada, Mexico, Saudi Arabia, Turkey, United Arab Emirates
c) Brazil, India, Nigeria, South Africa, South Korea
d) China, France, Russia, United Kingdom, United States

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

I am a seven-letter word but if you remove four of my letters I will have one left. What word am I?

What is more useful when it is broken?

If a wheel has 54 spokes, how many spaces are there between the spokes?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

O_er_t_o_

Complete the missing letters of the given word.

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

What Word am I Looking For ?