High School Challenge Previous Problems
Break Even Point
What a Kite
One Remainder
Some Zeros
What a Sale
Algebra Garden
Perfect Cubes
Match The Card
Money Tree
Ride On
Six Circle Triangle
Deep Freeze
What Digits
Tower of Power
The Gift
Bored?
It's Only a Hundredth
The ABC's of Degrees
Mitsubishi Logo
Paint the Cube
Intersecting Chords
Toothpicks
Box on Rollers
Infinity
The Finest Pyramid
Cube the Digits
3 Unit Circles
The Printer
Plead the Fifth
How Many Pages?
Conversely Speaking
One Hundred Squares
What Is It?
Chinese Remainder Theorem
Circle Inscribed in Right Triangle
Holy Cube
What Order?
Trap A Zoid
Arithmetic Progression
The Family Connection
72 Things
Triangle Medians
Who is behind the masks?
The coin machine
Go fish
Some fortune
The Whole Distance
The Trisected Hypotenuse
Some Formula
Some Summation
Did the Butler do it?
Sum Factorial
Sum Five
A Big Group
How Far Away is the Point?
Tin Box
Geometric Progression and Reciprocals
The Escalator
The Shadow Knows
Six Factors
The League
Ten Wraps of Wire
Twos and Then Some
2.52525...
Circle the Square
My Granddad
N+10
A New Floor
Add the Angles
My Watch
Pick Six, Including 3
UCF
This Is Complex
Which Jar?
The Lock
Pete and Repeat
Two Clocks
Special Fractions
The Racers
The Track
Your Salary
To School and Back
Weigh Those Blocks
A Unique Number
Where in the World?
A Convex Polygon
The Ladder Slid
What are a n b n c?
Integral Cube
Magic Cube
Slick or Boring
Want a Date?
Weird Division
The Formula Is
Who is Single?
What is Going On?
The Same Remainder
The Subtraction Problem
The Root of it
A Different Rule
The Common Thread
Tuff Sequence
It is a girl!
This is Radical!
Will You Fold Your Tent On This One?
There is a Pattern
Powerful Strange
Not So Unlucky
Commonality
Look Carefully
What Is Next?
How Are Your Reflexes?