Riddle

I am a sharp looking horse with a flaxen tail. The longer I run the shorter my tail becomes. What am I?

Choose an answer

A.A pin
B.A hook
C.A comb
D.Needle
Hint: It's a word with 6 letters, starting with "N".

Answer

Needle

Why this is the answer

A sewing needle pulls thread ('flaxen tail') through fabric, and the thread grows shorter the more it's stitched through.

This riddle is filed under "What Am I?" Riddles and rated Medium.