Is it possible to deliver checkmate in 1 move?

Yes, you can. but very tricky things to do.

first ,you need to be a spoiled five year old with attention span of 1 second. 

If you are old, you need some chemical substance to achieve similar results.

In general, not recommended.

@1cbc that's not what we meant

Sometimes a game will start out with one side giving odds to the other. For example, pawn odds, or knight odds. Because one side is better than the other, to make the game more equal one side gives up one or more pieces from the starting position.  So a starting position like this is possible.

That would be a good puzzle for someone new to chess

There is no way to do a checkmate in one move, because you first need to move your pawns to activate your other pieces. 

Under the standard rules of chess and the standard starting position:  no.

There is a variation that some call skip-dengle that allows all of the pieces to jump over one other piece (like a knight).  In that variation 1 d4 Bb4# can happen (only one blocker can be interposed and the bishop can jump over it).  Note that 1 f4 Qh4+ falls to 2 Rxh4.

I was actually kinda curious.

Is there a way to lock this forum independently?

Never, I always takes 10 moves atleast

It needs 2 moves minimum

nope

You can in to playing as black, and in 3 playing as white

Unless it started off with a king in checkmate already, nope.

In starting position, cm in 1 is not possible