You will need to determine the numbers for each of the "trivial" calculations labeled A through Y.   Then you will need to perform each calculation and enter the answer in the corresponding box.   The * represents the multiplication operation and the / represents division.   Each number from 1 to 25 will be used just once.   When all the boxes are correctly filled in, every row, every column, and the two diagonals will all add up to the same sum (the MAGIC NUMBER!).   Once you've determined the magic number by filling in five boxes in a row, you'll have a clue toward filling in the other boxes.

A      
 
B      
 
C      
 
D      
 
E      
 
F      
 
G      
 
H      
 
I      
 
J      
 
K      
 
L      
 
M      
 
N      
 
O      
 
P      
 
Q      
 
R      
 
S      
 
T      
 
U      
 
V      
 
W      
 
X      
 
Y      
 

CLUES:

A. Baseball Team + Notes in an Octave
B. Disciples * Gentlemen of Verona

C. Dave Clark ____ - Horsemen of the Apocalypse
D. Octopus' arms + Diagonals in a Triangle

E. Baker's Dozen + Couple
F. Books in the Old Testament - "Sweet _____"

G. Legs of a Bovine + Eyes of a Cyclops
H. Ounces in an Avoirdupois Pound - The Muses

I. Snow White's Dwarfs + "The _____ Seas"
J. Books of the Bible - Golden Anniversary

K. Degrees in a Circle / Degrees in a Right Angle
L. Dozen and a Half - Signs of the Zodiac

M. Amendments in the Bill of Rights + Triangle's Sides
N. Octogenarian / Pecks in a Bushel

O. Human Adult's Teeth - One Decade
P. The Senses + The Great Lakes

Q. Months in a Year + Degrees Freezing (in Celsius)
R. Original Colonies + Sides of a Hexagon

S. Wonders of the World * "_____ Dog Night"
T. Known Planets / Feet in a Yard

U. "Dinner at _____" + The R's
V. Wilson's Points + Bits in a Half Dollar

W. Pentagon's Sides * Diagonals in a Pentagon
X. Booth Tarkington Book - Men On a Dead Man's Chest

Y. The Commandments - Dots in a semi-colon