Answer:
Kills the bad ones and the sad ones. Tightens to fit, so one size fits.
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
We are all around, yet to us you are half blind. Sunlight makes us invisible, and difficult to find.
In Paris but not in France, the thinnest of its siblings.
What goes in, but never through? I've got some and so do you. We might lend one, or even two, but only if our trust is true.
Why is the letter B always cool?