How to deal with child tantrums?

I need some help. My 5 year old is out of control lately. She is constantly throwing temper tantrums. Hitting, kicking and screaming loudly. Over silly things I would expect of a toddler. She talks back constantly and displays angry behaviors and words all the time. She also lies about absolutly everything in the world. I partially know this is normal for age but the other part of me thinks her behaviors are extreme. The talking back and mouthing off is non stop and affecting home life greatly. Along with the tantrums and attitude im not sure what else to do…help!