Answer:
They keep secrets locked away. And you pass through them each day. For each one there is a key, They respond to sesame.
A natural tattoo on babies
Each morning I appear to lie at your feet, all day I follow no matter how fast you run. Yet I nearly perish in the midday sun.
What is so delicate that even mentioning it breaks it?
Other terms for this handy device include doohicky, doo-dad, and whatchyamacallit.
What do ghost serve for dessert?