I'm solving this from my hospital computer, so cannot type Chinese, sorry.

Question 9
PAO 5 jin 4, che 3 ping 4 (if pao 7 tui 1, PAO 9 ping 7, ma 1 tui 3, CHE 8=7, red wins), CHE 8 tui 1, pao 7 tui 1, CHE 4 ping 5, jiang 5 ping 6, CHE 5 jin 1.

Question 11
MA 5 jin 6, che 8 jin 1 (if pao 2 tui 6, CHE 4 jin 1, ma 7 tui 6, PAO 2 ping 8, red wins), CHE 4 ping 2, red has winning advantage. Is there any direct kill method?

Question 12
CHE 5 jin 3, jiang 5 jin 1, CHE 8 jin 1, jiang 5 tui 1, MA 6 jin 5, red wins no matter what black moves