Why is my phone waking up every few seconds? Why are my apps working on their own?

Everytime I turn my phone on or click the lock button apps always seem to go on by themselves and whenever I turn my phone off, it always wakes itself up. And I've looked at my settings and I can't seem to turn it off. Plus, I don't have what you would consider a smartphone, well, its not a flip phone, but it's not like every other phone. Thank you for your advice.

-Anonymous-

Welcome to Android Central! Which phone? This is an Android forum, so if you don't have an Android device, we won't be able to help you very well.