As long as it's a safe website, nope.
The plants aid you in fighting the zombies in different way.
Speekonia does not give your computer a virus and it is designed in a way that will not give your computer any malware.
Yes. It has some downloads to it that will give a virus to your computer.
No, World of Warcraft will not give your computer a virus.
No, Zune will not give your computer a virus.
no, they won't give you virus
Probably.
No.
No.
No
No! It shouldn't be. Plants Vs. Zombies should be clean, playable and safe. If you have a minor lag after playing it, then it must have a Malware. Be sure that the copy of Plants vs. Zombies you have is 100% original. Some crackers just cracked the game using bots and other files. This can leave an imprint to one of the game files. Sometimes, the virus will hangout in the "bass.dll" file in the main directory of Plants Vs. Zombies. You must download and install a clean copy of the game to resolve this.