I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

There are 20 people in an empty, square room. Each person has full sight of the entire room and everyone in it without turning his head or body, or moving in any way (other than the eyes). Where can you place an apple so that all but one person can see 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?

Move three sticks of the spiral below to form a square.

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?