Integers - an array from 0 to 100:

(0..100).to_a

Objectives:

1. return all odd numbers
2. return all even numbers
3. return the square of all the numbers
4. return the first number whose square is > 350
5. return all the numbers whose square is > 350
6. return all the numbers, cubed
7. return the first number whose cube is > 500
8. return all the numbers whose cube is < 500

For reference:

• x ** 2 is x squared
• x ** 3 is x cubed
• x.odd? checks if x is odd
• x.even? checks if x is even

Characters - array from 'a' to 'z' - ('a'..'z').to_a

Objectives:

1. return all the letters, capitalized
2. first letter with ord > 120
3. all the letters whose capital is > 72
4. all letters where the capital has an even ord
5. all letters with odd ord
6. first odd - ord letter with ascii value > 80

For reference: letter.ord - returns the ascii value of a letter (as an integer)