Riddle

What goes up and down at the same time but doesn't move?

Choose an answer

A.An elevator
B.A ladder
C.A ramp
D.Stairs
Hint: It's a word with 6 letters, starting with "S".

Answer

Stairs

Why this is the answer

This structure has steps leading both upward and downward simultaneously.

This riddle is filed under Time, Money, Music Riddles and rated Easy.