Iphone 5 jailbreak and unlock possible or not?

I have iphone 5 and i don't know whether it is possible to jailbreak it and unlock it for other carriers?

Nope, and Nope.

Can people not use Google?

Not possible. Till the jailbreakers Dev team / Green poison mention and release it its not possible every other method is a lie and malware.

Also like one said - Use google dude.