Do you think it's OK to lie to my parents?
Why do you think you need to lie to your parents?
My parents are so intrusive, I want to have some privacy
It is normal to crave independence from your parents but is wrong to lie. It is important to have trust in your relationship.
I'm going to do it anyway
Lying will only get them to get on your case more when they find out. It's better in the long run if your parents trust you.