I can be hidden, a national bank, or a girl - like totally. But you probably know me best by my adjacent association with mountains and hills.

This Muppet scientist might use these when he's doing his experiments

Did you hear about the man who collapsed while climbing Mt. Everest? The authorities just found __________ there. Update: the man was taken to the base camp and has fully recovered. So no climbers were harmed in the making of this riddle.

Tom Sawyer didn't want to paint one, so Ben Rogers paid him an apple for the privilege. Without a gate, add a d, and you've done this to me. Wood, metal, or stone, I can keep others away from your home.

If you drop a pot or pan, you'll likely hear this noise. It's one of those thats spelled the same, similar to ding and dang!