Question

I'm a English learner,I want to know some phrases' meanings I listed in the following.Thank you!
each and every
black and white
out and about
prim and proper
pick and choose
peace and quiet
up and down
back and front
all and nothing

Answer 1

Many of these are redundant emphasis. In other words, they have the same or very similar meaning and are being said to put more emphasis on it. Others are to show some sort of duality or contrast where you have conflicting ideas that you might have one of the two or being used to show a larger whole by being both. It would depends on the use.

each and every Redundant emphasis.
black and white
out and about
prim and proper Redundant emphasis.
pick and choose Redundant emphasis.
peace and quiet Redundant emphasis.
up and down
back and front
all and nothing