Ridley the Riddle Turtle

Ridley the Riddle Turtle is back!

Our favourite riddle turtle has three riddles for you today.

Occurring once in a hundred years and once in thousands. But never in a day or a year or a century. What am I?

I have numbers on my face but I can’t find 13 any place. What am I?

What cannot talk, but will always respond when spoken to?

Post your answers in the comments.