Um.... Why?
Hm... The first one was ok I guess... Though I did question a few things, such as "If Ran can crack concrete with her fist, why can't she break some wood in one kick? Especially since women tend to be stronger in their legs than arms." But I was proud since I was able to figure out the culprit.
The second one.... Once again, ok. Though I wonder how Ran is able *SPOILER* and why Kogoro *SPOILER* and such.