A witch, a barista, and an alchemist walk into a bar. The bartender rolls his eyes. For these four share an essential skill. What for are these four known for?

I am born from curiosity, but I do not come from certainty. You feel me when a doubt is in your mind.

I can help to grant permission Or I’m how something quickly leaves your grasp I’m where you start your boating mission And a grip that didn’t last.

A woman's name, a colour, a tree and a cocktail ingredient. Reversed, it is a bad letter of the Alphabet.

When your plans or your hands turn to dust. When you knock down a door with a thrust. An object of lust, impolite to discuss, This place to hang pearls when men. . .