He has gotten wiser. He's also not as good as he was. He used a weapon with the dragon, but he didn't with Grendel. He knew he was older and slower.
Because climate change is a real problem and a fact.
He realized that Daniel wasn’t home since it states here that “The house was dark, and when when he rang the bell, there was no answer” if Daniel where home there would be an answer and the house wouldn’t look dark.
Fifty cents? im not entirely sure