Does Thor - Norse God of Thunder - have a weakness?

Answer 1

In many of the stories, he appears to not be particularly bright.

For example, one story involves him in a drinking contest where he somehow manages not to notice that a) the other end of his drinking horn is in the ocean and b) the supposed mead tastes remarkably like seawater.

This is really more of a motif than an isolated incident; a lot of Thor stories follow the same basic pattern:

• Thor is big and strong and he knows it and is more than a little proud of it;
• He gets involved in some rigged contest (often with, or at the urging of, Loki, whom he inexplicably seems to trust despite past experience);
• Anyone smarter than a box of rocks would notice the opponent is cheating, but Thor doesn't;
• He loses;
• Loki has a good laugh at Thor's expense (if Loki wasn't actually the opponent, he's usually the one to point out to Thor what really happened).

==========================================================================

I love how the only job mythology majors can seem to find, is arguing with other mythology majors.

Answer 2

Thor has a weakness, since he is killed in Norse mythology. Thor is too arrogant.