I know that I can probably do them in 10 minutes in Python, but that's not going to be as fun or valuable, especially since I'm not going to be able to compete for the leaderboard due to timezone/work.
Then you are in the absolute top tier of the people competing. Either that, or you probably belong in this subreddit https://reddit.com/r/iamverysmart ;)
Having to think about basic things such as how to instantiate hash maps, what is the syntax for control flow, does this language have this particular functionality. This can take hours spent in reading documentation and debugging.
From what I've seen from last year, the problems arent't that hard (they're meant to be solved within a day), so the real time consuming part is the coding.
Couple months ago I discovered Nim [1], which I find as an interesting language, and I just finished 2015's tasks as a practice [2].
Now I'm considering using it for this year too. I'll use Python as a fallback, if/when I fail to complete some task in Nim.