From the condition (1) and (4), we can easily determine below table.
 

 $\begin{array}{ccc}CountryName& MedalWon& Mascot\\ Switzerland& Sliver& Wolf\\ Germany& & \\ Norway& Bronze& Tiger\\ China& & \\ Canada& Nomedal& \end{array}$
From the condition (2) we can determine Germany won gold medal and from condition (5) we can determine 
Germany's mascot lion. And from condition (5), we can determine china's mascot is fox. Finally, we can make 
below table.
 $\begin{array}{ccc}CountryName& MedalWon& Mascot\\ Switzerland& Sliver& Wolf\\ Germany& Gold& Lion\\ Norway& Bronze& Tiger\\ China& Nomedal& Fox\\ Canada& Nomedal& Wolverine\end{array}$