Chess puzzles

this is a place where you post puzzles!

rules:there is no rules! as long as it has something to do with chess tactics and strategies. you can post

i'll start with some ez ones:

Thanks @ Tommy_the_detective. For the first one i thought 2... can be Nf6( for saving queen). 

yeah...didn't thought of that, nice catch!

well, i don't really think of this as a puzzle, you can play many variations in this!