The below given figure comprises of a pattern through which you can determine the missing letter. Can you push your mind to find the pattern and add the missing letter?

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 five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Find the next number in the series below

21 32 54 87 131 ?

Can you find out who is the kidnapper in below Picture and why, Explain ?

What is the next number in this series?

4,12,84,3612....

Prove that twice of ten is the same as twice of eleven.

It is always ahead of me yet I can never see it. What is it?