diff --git a/Conditional Expressions/Characters_In-Username.py b/Conditional Expressions/Characters_In-Username.py
new file mode 100644
index 0000000..e73d2df
--- /dev/null
+++ b/Conditional Expressions/Characters_In-Username.py	
@@ -0,0 +1,6 @@
+a = str(input("Enter the username: "))
+
+if len(a)<=10:
+    print("The username contains less than 10 characters")
+else:
+    print("The uersname has more than 10 characters.")
\ No newline at end of file
diff --git a/Conditional Expressions/Checking_If_Age_Greater_Than_18.py b/Conditional Expressions/Checking_If_Age_Greater_Than_18.py
new file mode 100644
index 0000000..b198da6
--- /dev/null
+++ b/Conditional Expressions/Checking_If_Age_Greater_Than_18.py	
@@ -0,0 +1,6 @@
+a = int(input ("Enter your age: "))
+
+if(a>18):
+    print ("Your age is more than 18.")
+else:
+    print ("Your age is lesser than 18.")
diff --git a/Conditional Expressions/Detect_Spam_Comment.py b/Conditional Expressions/Detect_Spam_Comment.py
new file mode 100644
index 0000000..2a14a1e
--- /dev/null
+++ b/Conditional Expressions/Detect_Spam_Comment.py	
@@ -0,0 +1,13 @@
+a = ["make a lot of money", "buy now", "subscribe this", "click this"]
+b = input("Enter the text here to check: ")
+
+if ("make a lot of money" in b):
+    print ("This is spam.")
+elif("buy now" in b):
+    print("This is a spam.")
+elif("subscribe this" in b):
+    print("This is a spam.")
+elif("click this" in b):
+    print("This is a spam.")    
+else:
+    print ("This is not a spam.")
\ No newline at end of file
diff --git a/Conditional Expressions/Given_Name_In_List_Or_Not.py b/Conditional Expressions/Given_Name_In_List_Or_Not.py
new file mode 100644
index 0000000..bea0eec
--- /dev/null
+++ b/Conditional Expressions/Given_Name_In_List_Or_Not.py	
@@ -0,0 +1,8 @@
+names = ["Amelia", "Benjamin", "Chloe", "Daniel", "Emily", "Finn", "Grace", "Henry", "Isabella", "Jacob"]
+
+a = input("Enter the name you want to search:\n")
+
+if a in names:
+    print("The name is in the list.")
+else:
+    print("The name is not in the list.")
diff --git a/Conditional Expressions/Grade_Calculation.py b/Conditional Expressions/Grade_Calculation.py
new file mode 100644
index 0000000..a691d82
--- /dev/null
+++ b/Conditional Expressions/Grade_Calculation.py	
@@ -0,0 +1,14 @@
+a = int(input("Enter the marks: "))
+
+if (90<a<100):
+    print("Excellent")
+elif(80<a<90):
+    print("A")
+elif(70<a<80):
+    print("B")
+elif(60<a<70):
+    print("C")
+elif(50<a<60):
+    print("D") 
+else:
+    print("F") 
\ No newline at end of file
diff --git a/Conditional Expressions/Greatest_Of_4_Numbers.py b/Conditional Expressions/Greatest_Of_4_Numbers.py
new file mode 100644
index 0000000..f1f0b34
--- /dev/null
+++ b/Conditional Expressions/Greatest_Of_4_Numbers.py	
@@ -0,0 +1,23 @@
+a = input ("Enter the first number: ")
+a = int (a)
+b = input ("Enter the second number: ")
+b = int (b)
+c = input ("Enter the third number: ") 
+c = int (c)
+d = input ("Enter the fourth number: ")
+d = int (d)
+
+if(a>d):
+    f1 = a
+else:
+    f1 = d
+
+if (b>c):
+     f2 = b
+else:
+    f2 = c 
+
+if (f1>f2):
+    print (f1," is the greatest.")
+else:
+    print (f2, " is the greatest.")
diff --git a/Conditional Expressions/Pass_Or_Fail_On_Marks.py b/Conditional Expressions/Pass_Or_Fail_On_Marks.py
new file mode 100644
index 0000000..5bfa11b
--- /dev/null
+++ b/Conditional Expressions/Pass_Or_Fail_On_Marks.py	
@@ -0,0 +1,18 @@
+a = int(input("Enter the marks in % of the first subject: "))
+b = int(input("Enter the marks in % of the second subject: "))
+c = int(input("Enter the marks in % of the third subject: "))
+
+if(a<=33):
+    print ("Fail")
+else:
+    print ("Pass")
+
+if(b<=33):
+    print ("Fail")
+else:
+    print ("Pass") 
+
+if(c<=33):
+    print ("Fail")
+else:
+    print ("Pass") 
\ No newline at end of file
diff --git a/Conditional Expressions/Text having a specific name.py b/Conditional Expressions/Text having a specific name.py
new file mode 100644
index 0000000..90a8c50
--- /dev/null
+++ b/Conditional Expressions/Text having a specific name.py	
@@ -0,0 +1,7 @@
+a = input("Enter the post text: ")
+name = "Jacob" #The name variable contains the text that needs to be searched. 
+
+if name in a:
+    print("The given post is talking about Jacob.")
+else:
+    print("The given post is not talking about Jacob.")
diff --git a/Data Types & Variables/Addition.py b/Data Types & Variables/Addition.py
new file mode 100644
index 0000000..c117b9b
--- /dev/null
+++ b/Data Types & Variables/Addition.py	
@@ -0,0 +1,6 @@
+a = input ("Enter the first number: ")
+a = int (a)
+b = input ("Enter the second number: ")
+b = int (b)
+c = a + b
+print ("The sum of both the numbers is",c,".")
diff --git a/Data Types & Variables/Average_of_2_numbers.py b/Data Types & Variables/Average_of_2_numbers.py
new file mode 100644
index 0000000..71a0131
--- /dev/null
+++ b/Data Types & Variables/Average_of_2_numbers.py	
@@ -0,0 +1,6 @@
+a = input ("Enter the first number: ")
+a = int (a)
+b = input ("Enter the second number: ")
+b = int (b) 
+(a + b)/ 2 
+print ("The average of the two numbers is", (a + b)/ 2,".")
diff --git a/Data Types & Variables/Remainder.py b/Data Types & Variables/Remainder.py
new file mode 100644
index 0000000..76cccdf
--- /dev/null
+++ b/Data Types & Variables/Remainder.py	
@@ -0,0 +1,6 @@
+a = input ("Enter the first number: ")
+a = int (a)
+b = input ("Enter the second number: ")
+b = int (b)
+a%b
+print ("The remainder when first number is divided by second is",a%b,".")
\ No newline at end of file
diff --git a/Data Types & Variables/Square_of_Number.py b/Data Types & Variables/Square_of_Number.py
new file mode 100644
index 0000000..ad6339f
--- /dev/null
+++ b/Data Types & Variables/Square_of_Number.py	
@@ -0,0 +1,4 @@
+a = input ("Enter the number:")
+a = int (a)
+a*a 
+print ("The square of the number is",a*a,".") 
\ No newline at end of file
diff --git a/Data Types & Variables/Variable_Type.py b/Data Types & Variables/Variable_Type.py
new file mode 100644
index 0000000..7784e4e
--- /dev/null
+++ b/Data Types & Variables/Variable_Type.py	
@@ -0,0 +1,2 @@
+a = "Harris"
+print (type(a))
diff --git a/Dictionary & Sets/Adding_Elements_To_Dictionary.py b/Dictionary & Sets/Adding_Elements_To_Dictionary.py
new file mode 100644
index 0000000..9ae2a14
--- /dev/null
+++ b/Dictionary & Sets/Adding_Elements_To_Dictionary.py	
@@ -0,0 +1,19 @@
+Dict = {}
+
+a = input ("Enter your name: ")
+b = input ("Enter your favourite language: ")
+Dict.update ({a : b})
+
+c = input ("Enter your name: ")
+d = input ("Enter your favourite language: ")
+Dict.update ({c : d}) 
+
+e = input ("Enter your name: ")
+f = input ("Enter your favourite language: ")
+Dict.update ({e : f}) 
+
+g = input ("Enter your name: ")
+h = input ("Enter your favourite language: ")
+Dict.update ({g : h}) 
+
+print (Dict)
diff --git a/Dictionary & Sets/Dictionary_With_English_Meanings.py b/Dictionary & Sets/Dictionary_With_English_Meanings.py
new file mode 100644
index 0000000..8880159
--- /dev/null
+++ b/Dictionary & Sets/Dictionary_With_English_Meanings.py	
@@ -0,0 +1,13 @@
+Dict = { 
+    "haal" : "deed",
+    "acha" : "good",
+    "bura" : "bad",
+    "sahih" : "ok",
+    "par" : "wings",
+}
+
+a = input("Enter the word you want to search: ")
+
+meaningOfA = Dict.get(a)
+
+print (meaningOfA)
\ No newline at end of file
diff --git a/Dictionary & Sets/Display_Numers_Once.py b/Dictionary & Sets/Display_Numers_Once.py
new file mode 100644
index 0000000..5c75eea
--- /dev/null
+++ b/Dictionary & Sets/Display_Numers_Once.py	
@@ -0,0 +1,20 @@
+s = set ()
+
+a = input ("Enter the number you want to add: ")
+s.add(a)
+b = input ("Enter the number you want to add: ")
+s.add(b)
+c = input ("Enter the number you want to add: ")
+s.add(c)
+d = input ("Enter the number you want to add: ")
+s.add(d)
+e = input ("Enter the number you want to add: ")
+s.add(e)
+f = input ("Enter the number you want to add: ")
+s.add(f)
+g = input ("Enter the number you want to add: ")
+s.add(g)
+h = input ("Enter the number you want to add: ") 
+s.add(h)
+
+print (s)
diff --git a/Dictionary & Sets/Int+String_In_Set.py b/Dictionary & Sets/Int+String_In_Set.py
new file mode 100644
index 0000000..e2afeda
--- /dev/null
+++ b/Dictionary & Sets/Int+String_In_Set.py	
@@ -0,0 +1,2 @@
+s = {18, "18"}
+print (s)
\ No newline at end of file
diff --git a/Dictionary & Sets/Length_Of_Set.py b/Dictionary & Sets/Length_Of_Set.py
new file mode 100644
index 0000000..5a9b41b
--- /dev/null
+++ b/Dictionary & Sets/Length_Of_Set.py	
@@ -0,0 +1,7 @@
+s = set ()
+
+s.add (20)
+s.add (20.0)
+s.add ("20")
+
+print (s)
diff --git a/Dictionary & Sets/Type_Of_Set.py b/Dictionary & Sets/Type_Of_Set.py
new file mode 100644
index 0000000..abd6e1e
--- /dev/null
+++ b/Dictionary & Sets/Type_Of_Set.py	
@@ -0,0 +1,2 @@
+s = {}
+print (type (s))
diff --git a/Lists And Tuples/Changing_Tuple_Elements.py b/Lists And Tuples/Changing_Tuple_Elements.py
new file mode 100644
index 0000000..fe26483
--- /dev/null
+++ b/Lists And Tuples/Changing_Tuple_Elements.py	
@@ -0,0 +1,6 @@
+a = (2, 5, 89, 56, 4)
+
+a[0] = 4 
+a[1] = 6
+
+print (a)
diff --git a/Lists And Tuples/Count_0s.py b/Lists And Tuples/Count_0s.py
new file mode 100644
index 0000000..fbe67b0
--- /dev/null
+++ b/Lists And Tuples/Count_0s.py	
@@ -0,0 +1,5 @@
+a = (7, 0, 8, 0, 0, 9)
+
+a.count(0)
+
+print (a.count(0))
\ No newline at end of file
diff --git a/Lists And Tuples/Marks_Of_6_Students.py b/Lists And Tuples/Marks_Of_6_Students.py
new file mode 100644
index 0000000..400e90e
--- /dev/null
+++ b/Lists And Tuples/Marks_Of_6_Students.py	
@@ -0,0 +1,11 @@
+a = int(input("Enter the marks of student no. 1: ")) 
+b = int(input("Enter the marks of student no. 2: "))
+c = int(input("Enter the marks of student no. 3: "))
+d = int(input("Enter the marks of student no. 4: "))
+e = int(input("Enter the marks of student no. 5: "))
+f = int(input("Enter the marks of student no. 6: "))
+
+marks = [a, b, c, d, e, f]
+marks.sort() 
+
+print (marks) 
\ No newline at end of file
diff --git a/Lists And Tuples/Storing Inputs In A List b/Lists And Tuples/Storing Inputs In A List
new file mode 100644
index 0000000..a30b141
--- /dev/null
+++ b/Lists And Tuples/Storing Inputs In A List	
@@ -0,0 +1,12 @@
+a = input ("Enter the name of the first fruit: ")
+b = input ("Enter the name of the second fruit: ")
+c = input ("Enter the name of the third fruit: ")
+d = input ("Enter the name of the fourth fruit: ")
+e = input ("Enter the name of the fifth fruit: ")
+f = input ("Enter the name of the sixth fruit: ")
+g = input ("Enter the name of the seventh fruit: ")
+
+Input = [a, b, c, d, e, f, g]
+
+print (Input)
+
diff --git a/Lists And Tuples/Sum_Of_List_Elements.py b/Lists And Tuples/Sum_Of_List_Elements.py
new file mode 100644
index 0000000..7076bff
--- /dev/null
+++ b/Lists And Tuples/Sum_Of_List_Elements.py	
@@ -0,0 +1,4 @@
+a = [45, 25, 45, 65]
+
+print (a[0] + a[1] + a[2] + a[3]) #The sum is only the elemnts of the list. You can change the program if you want to sum the inputs entered by the user. 
+
diff --git a/Loops In Python/Break_Statement_Function b/Loops In Python/Break_Statement_Function
new file mode 100644
index 0000000..33d2117
--- /dev/null
+++ b/Loops In Python/Break_Statement_Function	
@@ -0,0 +1,6 @@
+for i in range (0, 40):
+    print (i)
+    if i == 5:
+        break 
+
+# The output is only till 5.  
diff --git a/Loops In Python/Continue_Statement_Function.py b/Loops In Python/Continue_Statement_Function.py
new file mode 100644
index 0000000..a9d63ee
--- /dev/null
+++ b/Loops In Python/Continue_Statement_Function.py	
@@ -0,0 +1,4 @@
+for o in range (5):
+    if o == 3:
+        continue 
+    print (o) 
diff --git a/Loops In Python/For_Loop_With_Else.py b/Loops In Python/For_Loop_With_Else.py
new file mode 100644
index 0000000..a19a5af
--- /dev/null
+++ b/Loops In Python/For_Loop_With_Else.py	
@@ -0,0 +1,6 @@
+a = [1, 2, 3, 4, 5]
+
+for item in a:
+    print (item)
+else:
+    print ("Done.") 
\ No newline at end of file
diff --git a/Loops In Python/Greet_Person_With_S.py b/Loops In Python/Greet_Person_With_S.py
new file mode 100644
index 0000000..4df7e19
--- /dev/null
+++ b/Loops In Python/Greet_Person_With_S.py	
@@ -0,0 +1,8 @@
+#This program will only greet the person whose name starts with an "S".
+
+name = str(input("Enter the name: ")) 
+
+if name.startswith ("S"):
+    print ("Greetings, " + name + "!")
+else:
+    print ("Try again!!")
\ No newline at end of file
diff --git a/Loops In Python/Pass_Statement_Function.py b/Loops In Python/Pass_Statement_Function.py
new file mode 100644
index 0000000..d2ea859
--- /dev/null
+++ b/Loops In Python/Pass_Statement_Function.py	
@@ -0,0 +1,6 @@
+p = ["Apple", "Orange", "Banana", "Peach"]
+
+for item in p:
+    pass 
+
+print ("HELLO!") 
\ No newline at end of file
diff --git a/Loops In Python/Print_1_To_50_Using_While_Loop.py b/Loops In Python/Print_1_To_50_Using_While_Loop.py
new file mode 100644
index 0000000..a736fe2
--- /dev/null
+++ b/Loops In Python/Print_1_To_50_Using_While_Loop.py	
@@ -0,0 +1,5 @@
+a = 1
+
+while a<=50:
+    print (str(a))
+    a = a + 1
diff --git a/Loops In Python/Print_List_Contents_Using_While_Loop.py b/Loops In Python/Print_List_Contents_Using_While_Loop.py
new file mode 100644
index 0000000..ff25a81
--- /dev/null
+++ b/Loops In Python/Print_List_Contents_Using_While_Loop.py	
@@ -0,0 +1,6 @@
+a = ['John', 'Doe', 'Jane', 'Jacob', 'Joseph', 'Joshua']
+b = 0
+
+while b<len(a):
+    print (a[b])
+    b = b+1
diff --git a/Loops In Python/Print_List_Using_For_Loop.py b/Loops In Python/Print_List_Using_For_Loop.py
new file mode 100644
index 0000000..5be3a48
--- /dev/null
+++ b/Loops In Python/Print_List_Using_For_Loop.py	
@@ -0,0 +1,4 @@
+l = [1,7,8,9,4,5,6,7]
+
+for item in l:
+    print (l)
diff --git a/Loops In Python/Print_List_Using_While_Loop.py b/Loops In Python/Print_List_Using_While_Loop.py
new file mode 100644
index 0000000..47fbc36
--- /dev/null
+++ b/Loops In Python/Print_List_Using_While_Loop.py	
@@ -0,0 +1,6 @@
+Fruits = ["Apple", "Banana", "Oranges", "Guava0", "Grapes". "Mangoes"]
+
+i = 0 
+while i < len(Fruits): 
+    print (Fruits[i])
+    i = i + 1 
diff --git a/Loops In Python/Print_Multiplication_Table_Using_For_Loop.py b/Loops In Python/Print_Multiplication_Table_Using_For_Loop.py
new file mode 100644
index 0000000..143d69b
--- /dev/null
+++ b/Loops In Python/Print_Multiplication_Table_Using_For_Loop.py	
@@ -0,0 +1,3 @@
+num = int(input ("Enter the number: ") )  
+for i in range (1, 11): 
+    print (str(num) + "X" + str(i) + "=" + str(i*num)) 
diff --git a/Loops In Python/Range_Function_Practice.py b/Loops In Python/Range_Function_Practice.py
new file mode 100644
index 0000000..9b4c747
--- /dev/null
+++ b/Loops In Python/Range_Function_Practice.py	
@@ -0,0 +1,6 @@
+for a in range (5, 15, 2):
+    print (a) 
+
+#This program prints from 5 to 15, with a skip size of 2.
+    
+print ("HELLLO WORLD!!")
diff --git a/Strings/Detect_Double_Spaces b/Strings/Detect_Double_Spaces
new file mode 100644
index 0000000..da46fa1
--- /dev/null
+++ b/Strings/Detect_Double_Spaces
@@ -0,0 +1,9 @@
+st = "This is a string with double  spaces."
+
+doubleSpaces = st.find("  ")
+
+print(doubleSpaces)
+
+#The value returned is 28 since the double spaced character is found at the 28th position in the string. 
+# If there was no value the value would be -1. 
+
diff --git a/Strings/Detect_SIngle_Spaces.py b/Strings/Detect_SIngle_Spaces.py
new file mode 100644
index 0000000..435d467
--- /dev/null
+++ b/Strings/Detect_SIngle_Spaces.py
@@ -0,0 +1,5 @@
+st = "This is a string with single  space."
+
+singleSpaced = st.replace("  ", " ")
+
+print (singleSpaced)
diff --git a/Strings/Display_User_Entered_Name.py b/Strings/Display_User_Entered_Name.py
new file mode 100644
index 0000000..cf81ba5
--- /dev/null
+++ b/Strings/Display_User_Entered_Name.py
@@ -0,0 +1,2 @@
+a = input ("Enter the name:")
+print ("Good Afternoon,",a,"!")
\ No newline at end of file
diff --git a/Strings/Escape_Sequence.py b/Strings/Escape_Sequence.py
new file mode 100644
index 0000000..f66c0e5
--- /dev/null
+++ b/Strings/Escape_Sequence.py
@@ -0,0 +1,4 @@
+letter = "Dear Harry, This Python course is nice. Thanks!"
+formatted_letter = "Dear Harry,\n\t This Python course is nice. \nThanks!"
+print (formatted_letter)
+
diff --git a/Strings/Letter_Template.py b/Strings/Letter_Template.py
new file mode 100644
index 0000000..aa34acf
--- /dev/null
+++ b/Strings/Letter_Template.py
@@ -0,0 +1,11 @@
+letter = '''Dear <|Name|>
+You are selected!
+
+Date: <|Date|>
+'''
+
+name = input("Enter your name:")
+date = input ("Enter date:")
+letter = letter.replace("<|Name|>", name)
+letter = letter.replace("<|Date|>", date)
+print(letter)