Cost computation and Display
Given a positive number of pens, a cost is computed and displayed. One Pen costs 1.99 dollars

Find relation between x and y.
if 1 = 2 2 = 9 3 = 28 How is x related with y?

write an expression
output is five more than twice an input number.

Reverse a string
Reverse the given string. Example input = 'reverse' output = 'esrever'

Calculate total workdone
Assume f is the force and D is the displacement

Find all even numbers between 1 and nth number
Find all even numbers between 1 and nth number

find palindrome
find palindrome

reverse the number
Reverse the given number

factorial of a prime number
Find factorial of prime number

Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...

Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

Rounding
Round 10.67 and make 'y' equal to that number.

2倍してみよう - ここからスタート！

metre to feet converter
The idea is to make a converter, which exchange meters to feets. We use a factor of 1m = 3.281*1f. so 3m are equals to 9.843 m...

Double colon operator: Counting up
* Construct a row array countValues from 1 to endValue, using the double colon operator. Ex: If endValue is 5, countValues s...

Find the Nth Root of a Given Number
Find the Nth root of a given number x. Examples x = 4096 n = 4 y = 8 x = 625 n = 5 y = 3.6239

Perfect Square
Find a function that finds the root of a perfect number!

Find the realtion between x and y
x=1 then y=3, x=2 then y=7, x=3 then y=13,

Dare to solve this
Find square of any number

increase the number by 7
You need to increase any given digit by 7

Say something funny
Say something funny, or not. Your solution will be (fully automatically and objectively) scored based on how clever or funny ...

Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...

Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...

Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...