(Lesson 2) Problem set

Add Question.1 udacify

Add Question.2 median

Add Question.3 count_down

Add Question.5 find last

Add Question.7 multiplication table solution
(Lesson 2) Probsem Set (Optional)

Add Question.1 weekend

Add Question.2 stamps

Add Question.3 range of a set
(Lesson 2) Problem Set (Optional2)

Add Quesion.1 superhero nuisance

Add Question.2 days old

Add Question.3 10 row abacus

Add Question.4 jungle animal

Add Question.5 leap year baby
(Lesson 2.5) How to Solve Problems

Define simple nextday

Define daysBetweenDays

Test for valid inputs

Finish days between dates