Puzzle Rush

Hi people of the knowledge club, it seems like our club is kind of dying since this disgraceful member @Hrvk10 banned about 100 people (he is now banned from chess.com YAY ) from our club. Our club didn't have much activeness and was getting kind of boring, so today, I came up with a game. This game was inspired from @just-potato's previous game where he posted a question and the first person to answer wins trophies. This time, I post a puzzle (starts off easy, gets harder every time) and whoever posts the right combination of moves wins 10 trophies. So here's the easy puzzle to start us off:

sorry ignore the 2nd puzzle I couldn't find a way to delete it

1st  ones answer is bc3 kg8 nh6

1. Bc3+ Kg8

2. Nh6#

I did not copy

@Shauryajain2009 you are correct I gave you your 10 trophies

alright here's the next puzzle (this one's kinda harder, but still kind of easy):

white to move, mate in 4

1. Nc6 Bd6

2. Bxd6 Rf4+

3. Bxf4 Rf8

4. Rxf8#

unfortunately incorrect

rfe7 kg8 nc6 kc8 na7 kd8 rbd7

yes correct but I think you meant kd8 on the 2nd move

ok from now on I'll give out 1 trophy per puzzle the first one was 10 trophies bc it was the first one

more puzzles

re7 ke7 qb4 (rd6 bc5) ke8 qb7 

you know what this puzzle is kind of wrong sorry let me post another one 

P.S. I thought Qb4 Bxb4 Rd8 Kd7 Rd7# but Bxb4 wasn't forced

black to move, forced mate in 5

qf4 ( if qf4 rh1 # and  ke1 rh1 bf1 qf1 #)  kg1 qe3 kf1 qf2 

yes close but there's a better way to defend for white than kg1 on the first move