diff --git a/Ch2 - Basics/challenge.py b/Ch2 - Basics/challenge.py
new file mode 100644
index 0000000..2672ca1
--- /dev/null
+++ b/Ch2 - Basics/challenge.py	
@@ -0,0 +1,23 @@
+# Palindrome - Reads a string the same way
+# Characters = strings, numbers - No puctuations or spaces
+# 1. Merge the entire string (Remove any puctiations, spaces)
+# 2. Take input like exit from user and quit
+# 3. Reverse the merged string and compare with merged screen
+# 4. If same = palindrome else false
+import re
+
+def merge_character(testchar):
+    new_alphanum = re.sub('[^A-Za-z0-9]+', '', testchar)
+    return new_alphanum
+def inverse_alphanum(testchar):
+    new_inverse = merge_character(testchar)[::-1]
+    return new_inverse
+
+testchar = input("Enter a string to test for palindrome or \'exit\': ")
+lower_testchar = testchar.lower()
+if lower_testchar == "exit":
+    print("Bye")
+elif merge_character(lower_testchar) == inverse_alphanum(lower_testchar):
+    print("Palindrone Test: True")
+else:
+    print("Palindrone Test: Failed")
diff --git a/Ch2 - Basics/conditionals_start.py b/Ch2 - Basics/conditionals_start.py
index f6b58d6..9942cbc 100644
--- a/Ch2 - Basics/conditionals_start.py	
+++ b/Ch2 - Basics/conditionals_start.py	
@@ -6,9 +6,12 @@
 
 
 def main():
-    x, y = 10, 100
+    x, y = 10000, 100
 
     # conditional flow uses if, elif, else
+    if x < y:
+        result = "X is less than Y"
+        print(result)
 
     # conditional statements let you use "a if C else b"
 
diff --git a/Ch2 - Basics/functions_start.py b/Ch2 - Basics/functions_start.py
index 56cb247..a03b6d9 100644
--- a/Ch2 - Basics/functions_start.py	
+++ b/Ch2 - Basics/functions_start.py	
@@ -5,10 +5,12 @@
 
 
 # TODO: define a basic function
-
+def func1():
+    print("I am a function")
 
 # TODO: function that takes arguments
-
+def func2(arg1, arg2):
+    print (arg1, " ", arg2)
 
 # TODO: function that returns a value
 
@@ -19,3 +21,6 @@
 # TODO: function with variable number of arguments
 
 
+func1()
+print(func1())
+print (func1)
\ No newline at end of file
diff --git a/Ch2 - Basics/helloworld_start.py b/Ch2 - Basics/helloworld_start.py
index 7d6b753..354d0a0 100644
--- a/Ch2 - Basics/helloworld_start.py	
+++ b/Ch2 - Basics/helloworld_start.py	
@@ -3,4 +3,10 @@
 # LinkedIn Learning Python course by Joe Marini
 #
 
+def main():
+    print("Hello World")
+    name = input('What is your name?')
+    print("Nice to meet you", name)
 
+if __name__ == "__main__":
+    main()
diff --git a/Ch2 - Basics/variables_start.py b/Ch2 - Basics/variables_start.py
index b2756cc..eecd277 100644
--- a/Ch2 - Basics/variables_start.py	
+++ b/Ch2 - Basics/variables_start.py	
@@ -13,25 +13,34 @@
 mytuple = (0, 1, 2)
 mydict = {"one" : 1, "two" : 2}
 
-print(myint)
-print(myfloat)
+#print(myint)
+#print(myfloat)
 print(mystr)
-print(mybool)
-print(mylist)
-print(mytuple)
-print(mydict)
+#print(mybool)
+#print(mylist)
+#print(mytuple)
+#print(mydict)
 
 # re-declaring a variable works
 
 # to access a member of a sequence type, use []
 
 # use slices to get parts of a sequence
+#print(mylist[1:])
 
 # you can use slices to reverse a sequence
 
 # dictionaries are accessed via keys
+#print(mydict["one"])
 
 # ERROR: variables of different types cannot be combined
+#print("My Stinrg" + str(123))
 
 # Global vs. local variables in functions
+def locgob():
+    global mystr
+    mystr = "def"
+    print(mystr)
 
+locgob()
+print(mystr)
diff --git a/Ch3 - Files/challenge-files.py b/Ch3 - Files/challenge-files.py
new file mode 100644
index 0000000..3acdb5f
--- /dev/null
+++ b/Ch3 - Files/challenge-files.py	
@@ -0,0 +1,20 @@
+# Crete a dir
+# Open / Create a file
+# run OS commands like list dir shutils? 
+# Close file
+
+import os
+import subprocess
+
+def main():
+
+    directory = "results"
+    os.mkdir(directory)
+    # os.rmdir(directory)
+
+    with open(r'' + directory + '/list.txt', 'w') as f:
+        subprocess.run(['find', '/"Ch3 - Files"', '-maxdepth', '1', '-type', 'f'], stdout=f)
+
+if __name__ == "__main__":
+    main()
+
diff --git a/Ch4 - Dates and Times/calendars_finished.py b/Ch4 - Dates and Times/calendars_finished.py
index 1372384..371e32b 100644
--- a/Ch4 - Dates and Times/calendars_finished.py	
+++ b/Ch4 - Dates and Times/calendars_finished.py	
@@ -5,6 +5,7 @@
 
 
 import calendar
+from itertools import count
 
 # create a plain text calendar
 c = calendar.TextCalendar(calendar.SUNDAY)
@@ -40,6 +41,7 @@
     # The first Friday has to be within the first two weeks
     weekone = cal[0]
     weektwo = cal[1]
+    print(count(cal))
    
     if weekone[calendar.FRIDAY] != 0:
         meetday = weekone[calendar.FRIDAY]
diff --git a/Ch4 - Dates and Times/challenge_start.py b/Ch4 - Dates and Times/challenge_start.py
index 9da42cb..6ff0df9 100644
--- a/Ch4 - Dates and Times/challenge_start.py	
+++ b/Ch4 - Dates and Times/challenge_start.py	
@@ -1,5 +1,44 @@
 # Start file for programming challenge for Learning Python course
 # LinkedIn Learning Python course by Joe Marini
-#
+# 1. Print the string asking user to choose the day of the week and then the month and year for which count of the day is required
+# 2. Make sure the selection is from a fixed set of strings. 
+# 3. Send the information to another class - where count of days is calculated
+# 4. 
 
 import calendar
+def countdays(theyear, themonth, whichday):
+    daycount = 0
+    weekslist = calendar.monthcalendar(theyear, themonth)
+    for week in weekslist:
+        if week[whichday] != 0:
+            daycount += 1
+    return daycount
+
+run = True
+while (run):
+    i = 0
+    print("Select the day of the week or type exit to quit:")
+    for day in calendar.day_name:
+        print (i, day)
+        i = i+1
+    weekselect = input("Your selection: ")
+    
+    lower_testchar = weekselect.lower()
+    if lower_testchar == "exit":
+        run = False
+        break
+    elif weekselect.isnumeric() == False or int(weekselect) > i:
+        print("Please add a valid number")
+    else: 
+        useryear = int(input("Enter year: "))
+        usermonth = int(input("Enter month: "))
+        #userday = calendar.day_name[int(weekselect)]
+        userday = int(weekselect)
+        print(userday)
+        result = countdays(useryear, usermonth, userday)
+
+        print("There are "+ str(result) +" in the month of specified year.")
+        # i = calendar.weekday(useryear, usermonth, int(weekselect)-1)
+        # print (i)
+
+
diff --git a/results/list.txt b/results/list.txt
new file mode 100644
index 0000000..e69de29