1. 64529
<code>
from scipy.optimize import fsolve
from math import sin,cos

def f(x):
    a = float(x[0])
    b = float(x[1])
    c = float(x[2])
    d = float(x[3])
    e = float(x[4])
    return [
        a*b-24,
        2*d-b,
        d+e-a-c,
        a+b+c+d+e-26,
        b+c-e,
    ]

result = fsolve(f, [1,1,1,1,1])

print result
print f(result)
</code>

2. Go to https://www.dropbox.com/about

ChenLi Wang -> Ramsey H. - > Allison Louie -> Naveen Agrawal -> Emily Zhao

https://www.dropbox.com/dropquest2012/crane

3. Just some icons. SMUDGES

4. Follow Google Map. SOMA

5. MADLIB

6. Invert the colors, use the not match ones. 2005-3-21

7. The letters are in the comments. Change the order by using the legend. DEALING

8. TRIUMPHANT, First letter of each college mascot:
<code>
MIT - Tim the Beaver
URI - Rhody the Ram
LMU - Iggy the Lion
UGA - Uga the Bulldog
LSU - Mike the Tiger
GSU - Pounce the Blue Panther
UNLV - Hey Reb!
UF - Albert and Alberta Gator
UNCC - Norm the Niner
MIT - Tim the Beaver
</code>

9. Order the files by file extension: Your next destination is the last page of the tour.

Then Go to https://www.dropbox.com/tour/6 and send a dropbox invite to the email listed there (boxer@dropbox.com) via https://www.dropbox.com/referrals.

10. ARGENTINA

11. SOUTHPOLE
<code>
SCFTB
OYBPX
UEHVD
TDGUC
HRUIQ
PZCQY
OYBPX
LVYMU
EORFN
</code>

12. Restore `Chapter12.txt` to its previous version via [[https://www.dropbox.com/revisions/Dropquest 2012/Captain's Logs/Chapter 12.txt]]

13. Go to https://www.dropbox.com/help and click on the shield icon of "Security and Privacy".

14. Re-arrange the slider puzzle according to the highlighted part of the sudoku puzzle. Use this to help you: http://analogbit.com/software/puzzletools
<code>
638
924
517
</code>

15. Share a folder with boxer@dropbox.com.

16. Click the large rainbow icon next to `Sharing` on https://www.dropbox.com/share

17. SHANGHAI
<code>
1. Days of the Week - Missing Sunday
2. Seven Dwarfs - Missing Happy
3. Zodiac Signs - Missing Aries
4. Planets - Missing Neptune
5. Seven Deadly Sins - Missing Greed
6. Chinese Zodiac - Missing Horse
7. Noble Gases - Missing Argon
8. Colours - Missing Indigo
</code>

18. Go to https://www.dropbox.com/home/Dropquest%202012/Spring%20Cleaning

Put 1, 3, 6, 8, 9 (.jpg) into Category 1 and 2, 4, 5, 7, 10 into Category 2.

19. The answer (URL) is in this format: 1.2/3

1 = Korean for db

2 = Audi TT

3 = For each column, subtract the smaller card value from the larger one

http://db.tt/Q2J9J4

20. https://www.dropbox.com/dropquest2012/apollo13

<code>
Ocean's Eleven - 11th word in 1.txt is Houston
X-Men: First Class - 1st word in 2.txt is we
21 - 21st word in 3.txt is have
Super 8 - 8th word in 4.txt is a
28 days later - 28th word in 5.txt is problem
Sixth Sense - 6th word in 6.txt is movie
</code>

21. The functions applied are: 1, 2, 21, 19, 9, 22, 5, 12, 25. Match them to the corresponding letter in the alphabet to get: ABUSIVELY

22. BADGE

Identify each flag, convert it to the ISO 2 digit country code. With the ISO Country Code, look up the corresponding chemical element in the periodic table and find the atomic number.

Substitute the atomic number for the country flags and solve the equation! N. B. mod refers to modulo operation which is the remainder after division.

Use the equation solutions to find the appropriate midi files for your puzzle (in correct order).
<code>
flags0.png - 11.mid
flags1.png - 18.mid
flags2.png - 01.mid
flags3.png - 14.mid
flags4.png - 19.mid
flags5.png - 05.mid
flags6.png - 04.mid
flags7.png - 13.mid
</code>

List the musical notes in the midi file, the snare hit (_) denotes a missing letter:
01: C E D _
02: C A G _
03: C A B _ A G E
04: E G _
05: _ E G
06: D E _ F
07: C A_ E
08: _ A B B A G E
09: _ E E F
10: F A C _
11: A C E
12: B E _ F
13: _ E A F
14: _ A B B A G E
15: _ E G
16: A G _
17: C E D _
18: D E _ F
19: D E C _ D E
20: D E C H D _

23. Go to the different dropquest twitter accounts and find the coordinates.

eg: https://twitter.com/dropquestalpha 18.836043, -72.545993

Connect the dots (looks like dropbox) and find the missing point - http://g.co/maps/hmqd2

MACHU PICCHU

24. Solve the crossword to get the clues:

20 Across - ORDERLOGSBYSIZE

61 Across - NINELETTERWORDS

Order the Captain's Logs by size (ascending), find the 9 letter words and take the first letter of each word to get nthwordoflogbychapter.

Order the log files by chapter and look for the nth word (Log 1 = 1st word, Log 2 = 2nd word, etc). This gives you a clue which leads you to the answer: COLOSSEUM