I can hold your solutions, but I never solve your problems. I have a lip but cannot speak, and though I am named after a bird’s anatomy, I fly only when thrown. What am I?

I am a roof with no walls I have a spine and ribs I am afraid of wind You want me bigger playing golf You want me smaller commuting

I make deliveries no one requests, usually addressed to castle guests.

I am the main ingredient in many shirts, socks, and under garments. To grow my crop, be ready to hunt some varmints.

With teeth or temper I attack, or split apart with sudden crack.