A vessel of secrets, it holds warmth or chill, often seen in the lab, ready to fulfill. With a narrow neck and a belly wide, it’s a chemist’s trusted guide.

I can be part of your foot, yet I never wear a shoe. I stand above a grand doorway, yet I cannot see the view. I am the chief of villains, but I do no crime myself. I am a sneaky prefix sitting on a grammar shelf. What am I?

It remains under the skin forever It disappears in water On paper it can change the world

What has eighteen legs and catches flies?

I'm what a lure might do, or a feeling of dread inside you. In quicksand, water, or any similar thing, I'm what the effect of gravity will bring.