Answer:
I am wood that is neither hard straight or crooked
Sometimes I annoy you, sometimes you can't live without me. But no matter how hard you try, you can't destroy me. What am I?
I work when I play and play when I work. What am I?
You may enter, but you may not come in. I have space, but no room, I have keys, but open no lock. What am I?
I must be broken before you can use me.
As round as an apple. As deep as a cup. All the king's horses can't pull it up.