My friend told me this brain teaser that says If this is a pencil and this is...

[madison_marie012]

...a pencil is this a pencil? What is the answer? I can not figure it out

[leepatel]

Definitions of pencil on the Web:

* a thin cylindrical pointed writing implement; a rod of marking substance encased in wood
* graphite (or a similar substance) used in such a way as to be a medium of communication; "the words were scribbled in pencil"; "this artist's favorite medium is pencil"
* a figure formed by a set of straight lines or light rays meeting at a point
* write, draw, or trace with a pencil; "he penciled a figure"
* a cosmetic in a long thin stick; designed to be applied to a particular part of the face; "an eyebrow pencil"


* A pencil is a writing or drawing instrument consisting of a thin stick of graphite and clay, usually encased in a thin wood cylinder. Pencils are distinct from pens, which use a liquid marking material.


* A pencil is a family of geometric objects, such as lines, that have a common property, such as passage through a given line in a given plane.

* A drawing implement made of graphite, crayon, or a similar substance enclosed in wood or a hand-held mechanism made of plastic or metal.


* A type of oar.


* A slender cylinder or strip of black lead, colored chalk, slate, graphite used for drawing.


* Tuft of fur or hair, as a black pencil on the end of the tail of a mammal.


* Made of graphite, a crystalline form of carbon, mixed with clay. There are varying degrees of hardness for pencils, the softest varieties contain little or no clay. Pencils are rated and labeled by degrees of hardness. 6B is very soft, producing a darker line. ...


* A group of light rays emanating from a point or converging to a point.


* A pencil is a wooden sheath with a carbon based filler. They are used for drawing lines on paper or plastic drafting film.


* The modern drawing pencil is made from graphite mixed with clay to lighten and harden the lead. The softest varieties contain little or no clay. Graphite is a form of carbon and is very stable. The paper used is usually smooth or has little texture. ...