Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

What is red and smells like blue paint?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

A mad serial killer kidnaps people and forces them to play the game of 2 pills with them, In this game, there are pills in the table and one of them is normal pill while the other one is deadly poisonous.
The victim will choose one pill and the killer will pick the other pill and both simultaneously will swallow the pill with water.
victim dies every time.

One day the serial killer kidnaps the Joseph and forces him to play the same game with him.

Joseph solves the mystery of the two pills and remains alive.

Explain?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Find the missing letter in the last circle logically in the given below picture.