Draw: White can't force the black king away from a8 and therefore can't queen.

OPPOSITE COLOURED BISHOPS

Draw: Black controls the squares infront of the white pawns. Whites bishop unable to attack these squares and therefore black can set up a blockade on them preventing the pawns advancing. If you're really bored try setting this up against a computer. It remains convinced its winning until fifty moves have passed and it has to declare a draw.

STALEMATE ONE

White to play cannot stop the pawn queening. However white can easily force the draw by: 1. Rg7+ Kf8 2. Rg5 f1=Q 3. Rf5 QxR stalemate.