Tactics puzzle 3:- Find the best move

[Event "?"] [Site "?"] [Date "2013.06.03"] [Round "?"] [White "Tactics"] [Black "Double Attack 1"] [Result "*"] [SetUp "1"] [FEN "3r3k/1pp3pp/pq6/n7/8/P1B3P1/1PB2P1P/2Q3K1 w - - 0 1"] [PlyCount "1"] 1. Qg5 {[%cal Gg5d8,Gg5a5,Gc3a5]} * [Event "?"] [Site "?"] [Date "2013.06.03"] [Round "?"] [White "Tactics"] [Black "Double Attack 2"] [Result "*"] [SetUp "1"] [FEN "5rk1/1ppqbppp/2p5/8/8/2P2QP1/PPB2P1P/4R1K1 w - - 0 1"] [PlyCount "5"] 1. Qe4 {[%csl Gc2,Ge1,Ge4][%cal Ge4h7,Ge4e7]} Re8 2. Qxh7+ Kf8 3. Qh8# * [Event "?"] [Site "?"] [Date "2013.06.03"] [Round "?"] [White "Tactics "] [Black "Double Attack 3"] [Result "*"] [SetUp "1"] [FEN "r6k/2p2p1p/p5p1/8/2r5/2P3P1/5P1P/4Q1K1 w - - 0 0"] [PlyCount "3"] 1. Qe5+ Kg8 2. Qd5 {[%cal Gd5c4,Gd5a8]} * [Event "?"] [Site "?"] [Date "2013.06.08"] [Round "?"] [White "Tactics "] [Black "Double Attack 4"] [Result "*"] [SetUp "1"] [FEN "2r3k1/5p1p/2p3p1/8/7b/Q7/5PP1/6K1 w - - 0 1"] [PlyCount "1"] 1. Qh3 * [Event "?"] [Site "?"] [Date "2013.06.08"] [Round "?"] [White "Tactics "] [Black "Double Attack 5"] [Result "*"] [SetUp "1"] [FEN "r6k/p4pp1/8/8/3p4/6P1/n4P2/3Q2K1 w - - 0 1"] [PlyCount "3"] 1. Qh5+ Kg8 2. Qd5 *