What is common among 11, 69, and 88?

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

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

why?

Different lights make me strange by changing me into different sizes. What am I?

A 52% bias toss for head using the 51% tail bias coin was done to obtain a fair result.

Can you find how bias is the floor in this case?

Role Action
Block Prevents the target player from acting
Redirect Change target player target.
Save Protects the target player from death.
Seer Sees all actions that occurred
Murderer Kills the target player

The following five players are playing:

Andy
Brian
Chris
Daniel
Fred

You are Andy the Seer and you saw the following things:
a) Brian was redirected to Chris.
b) Chris was blocked.
c) Daniel was killed.

Who is the murderer then?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

Can you move 2 matchsticks to form four equal sized squares.

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?