I got a suprisingly high (for me) 29. I was guessing on everything until #31. I got 11 out of 30 guesses right, so maybe I was able to rule out at least an option in some cases, or I just got lucky since I should have had about 7 or 8 right with a 1 in 4 chance on those.

Only ones I knew for sure were 31, 40, 45. I wasn't sure, but felt pretty good about 24 (so I guess I had 1 before 31) , 34,39, 42.