Well, I'm not quite sure, but I guess you could step on its tail or something...
yes
No
If you add a higher concentration of acid, or increase the temperature, the reaction will go faster.
Yes, of course! Adding anything to anything will make anything heavier.
No
You can get anything to download faster by removing files and speeding up your computer.
Usually, by adding er. Fast, faster; smart, smarter; quick, quicker
By tuning it and adding (and removing) accessories that would improve performance
No. In fact there isn't much you can do at all to make your nails grow faster.
the Kool-Aid will make the water boil faster
An easy way to make water cold is to put it in the refrigerator. If this is not possible, adding colder water would make water colder. Actually, adding ice would make this process faster, as it is colder than cold water. And dry ice would make it cold even faster than ice (but dry ice is dangerous- be careful).
Anything you add water to dilutes it.