You can get running spikes at most running specialty stores, sporting good stores, as well as online running-related retailers.
The purpose of running spikes are to provide traction as well as minimizing the chances of slipping. The spikes for a distance runner tend to be larger than spikes used by a sprinter.
There is different types of surfaces for different spikes: track for track spikes cross country for cross country spikes
From what I read is that Nikes and SPikes are very good running shoes. I personally think Nikes are great for running. and it is said that spikes are great for hardcore running.
With a ruler
You can get them of ebay.co.uk, sportsshoes.com, momentumsports.co.uk, newitts.com, fitnessfootwear.com, sweatshop.co.uk or just google running spikes and most of these websites come up.
Yes, you will need different track shoes and cleats/spikes for different events. The number of spikes, the pattern of spikes and the length of the spikes differs for sprinters, long distance runners and jumpers. If spikes are not used for running the shoes are still different. And throwing shoes do not have spikes and have a smooth sole.
You could find some spikes running shoes by going online to their website. Their website will most likely offer running shoes to the customers unless they don't have any.
to run faster obviously
No. They are not.
Spikes.
in one word. no