Answer:
A hill full, a hole full; yet you cannot catch a bowl full. What is it?
A beggar's brother went out to sea and drowned. But the man who drowned had no brother. Who was the beggar to the man who drowned?
Sleeping during the day, I hide away. Watchful through the night, I open at dawn's light. But only for the briefest time, do I shine. And then I hide away. And sleep through the day.
When they are caught, they are thrown away. When they escape, you itch all day.
My first half is normally made of stone, my second is crazy, and I taste sweet when complete.
What do angels sing in the shower?