What goes up and down without moving?

What goes up and down without moving?
Riddle Question: What goes up and down without moving?

Our favorite answer to the question "what goes up and down without moving?" is of course a flight of stairs.

However, there are many other things that go up and down without moving, such as the temperature, humidity, air pressure, the stair railing, and a ladder.

Email us if you have more answers to "What goes up and down without moving?"

More information
from Research Maniacs:

Riddles
We have a large collection fun riddles. Can you solve them?

Brain Teasers
Here are some brain teasers that may give you a headache.