Math Is Fun Forum

I've had lots of fun with the Einstein Puzzles on the MiF website, so much, in fact, that I wanted to create my own.

I use the Einstein puzzles in my English classes in Korea to let them relax but still have to use their English skills.

Here's the puzzle, please let me know what you think!  Any feedback/comments/criticism is welcomed!

Enjoy!

EDIT 1: August 6th 10:50am KST (Korean Standard Time) for clarification purposes
I'm not trying to trick anyone with the wording^^  Just challenge you.  Good Luck!
EDIT 2: forgot to rephrase the 'female teachers' part
EDIT 3: Aug. 31st to increase difficulty with phronister's help! (Note: I think I can make it slightly harder still, but not conclusive yet)
EDIT 4: Sept. 5th forgot to add the second question! oops!  and edited two more clues to make it harder, muwhahaha!
EDIT 5: Feb. 6th Final version!  (I hope~~)
EDIT 6: Feb. 27th a new final version as per post #44

THE PUZZLE:
        Which teacher has the purple door?                           
                                   
                                   
There is a study hall with one entrance and at the end of the hall is one exit.
As you enter, there are 2 rows of classrooms - five on your left and five on your right.
Ten different teachers use these classrooms to teach ten different subjects, respectively.
Each classroom has a different number of students and a different colored door.
In addition, each class has a unique starting time and a unique ending time.
The clues below give the teachers' first names and surnames, along with other information:
                                   
1) Jerek's classroom is the last one on the right.
2) David's class starts at 6:30pm and ends at 8:45pm.
3) Jennifer's Chinese class has a white door.
4) Jessica's class is 3 hours and 15 minutes long and is next to Mr. Nest's class.
5) Joe's class is next to the Music class and the exit.
6) Matthew's class ends at 8pm.
7) Max teaches Literature and is next to Ryan's classroom.
8) Michaela's class is next to Mrs. Smith's class.
9) Mr. Adams' 30-student class is next to Mr. Bush's 29-student class.
10) Mr. Bentley teaches Medicine.
11) Mr. Johnson's class has a blue door and ends at 10:15pm.
12) Mrs. Franklin's class lasts for 3 hours.
13) Michelle's class ends at 7:45pm.
14) Mrs. Jackson's class is between Mr. Bentley's and Mr. Jones' and across from Mrs. Franklin's.
15) Mrs. Wyatt's classroom is next to the class with 19 students.
16) Ryan's class has 33 students and a red door.
17) The 16-student class has an orange door.
18) The 20-student class is in between the 19-student class and the 18-student class.
19) The 34-student class has a pink door.
20) The black and grey doors are next to each other and the black-door class starts at 5pm.
21) The class between Jerek's and the red door starts at 5:15pm.
22) The class that ends at 9:30pm is in between the red door and the Reading class.
23) The class that ends at 10pm is across from Mr. Bush's.
24) The first class on the left has 19 students.
25) The Grammar class is next to Mr. Jones' class.
26) The green door is across from the class that starts at 5pm.
27) The History class is next to the class that starts at 6:15pm.
28) The Listening class starts at 7pm.
29) The Medicine class starts at 6pm and has 33 students.
30) The Music class ends 45 minutes before the Chinese class ends.
31) The Speaking class ends 15 minutes after the Literature class begins.
32) The Speaking class starts 2 hours before the History class starts.
33) The Reading and Writing classes are next to the entrance.
34) The yellow door is across from the class that starts at 7:15pm.
35) There are a total of 255 students and the left side has 5 more students than the right side.
36) Two of the four three-hour-long classes have female teachers.
37) The 16-student class ends half an hour before Mr. Adams' class ends.