There Are 10 People In A Room

Riddle: There are 10 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?

Answer: Place the apple on one person's head.

Source: https://www.riddles.com/3

There are 10 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? — There are 10 people in a room by Anonymous v1.

Riddle: There are 10 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? Answer: Place the apple on one person's head. — by Anonymous v2.