Puzzle of the Day (3 normal level puzzles): Mate in 1

good puzelze took some 1 min to do it but i liked it

So, how many did you solve?

the 1st puzzle looked like i saw it somewhere so i got it right in 7 sec

2nd one EZ clap

3rd one EZ too but they are nice puzzles

and in the 1st one there are multiple ways of doing checkmate

i know that but i can't make multiple answers right as chess.com has no feature to make more than one answer right, right?

why not rf2

and why not qf6