Man and Lion alike are oppressed by me When you are not my target, I'm less threatening than a box The key to escape my grasp is unnattainable for those oppressed by me

I cuff the creative and puzzle the physicist. I tempt the cat. How can you be certain of my contents until they're free of me?

As a noun, I belong to your horse. But as a verb, I am something you may have to do when your horse can no longer carry you.

I am not alive, yet I grow. I do not breathe, yet I need air. I do not have a mouth, yet I can kill. I am born small, but feared when I spread. What am I?

I'm a favorite snack for the little guys, like hummingbirds, bees and butterflies. But here's a little secret, I'm usually just bait, luring them to help my plants pollinate.