Riddle

I open wide and tight I shut, sharp am I and paper-cut fingers too. So do take care, I'm good and bad, so best beware.

Choose an answer

A.Knife
B.Stapler
C.Paper cutter
D.Scissors
Hint: It's a word with 8 letters, starting with "S".

Answer

Scissors

Why this is the answer

Scissors open and shut with sharp blades that can cut paper -- useful but also capable of nicking your fingers.

This riddle is filed under Hard/Difficult Riddles and rated Easy.