Riddle

Forward, backward, is what I do all day. I come in all different shapes and sizes. I can be scary, and I can calm you down. What am I?

Choose an answer

A.A pendulum
B.A see-saw
C.A hammock
D.Rocking chair
Hint: It's a 2-word phrase with 12 letters, starting with "R".

Answer

Rocking chair

Why this is the answer

A rocking chair sways forward and back continuously, comes in many designs, and can be spooky-looking (empty and rocking) or soothing to sit in.

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