Which is a reference to a piece of literature, movie, television show, artwork. allusion
personification
pun
idiom

Allusion

Explanation:

Allusion - Figure of Speech that makes a brief, indirect reference to a person, place, thing, or idea of historical, cultural, literary or political significance - A reference to someone or something famous.

Personification - A figure of speech in which an object or animal is given human feelings, thoughts, or attitudes

Pun - A play on words using the double meaning for fun

Idiom - an expression that says one thing but means something else

Hope this helps :)

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.