[Cosimo]

[ QUOTE ]
I'm at 21 and stuck with

8 B in a B

1 7 S H in the W

115 K C E

[/ QUOTE ]

I think these get exponentially easier with each added letter, so I've only added one each below.

I'm at 20 and still stuck on 17 S in a HP, 52 W K on a P, 21 Q S F, 6 S W M (S F).

** SPOILERS **
8 <font color="white">B in a By</font>
1 7 <font color="white">St H in the W</font>
115 <font color="white">Kn C E</font>