diff --git a/src/AppsLab-001-StartHere/Greetings.cs b/src/AppsLab-001-StartHere/Greetings.cs
index fbe10953..f02fdb12 100644
--- a/src/AppsLab-001-StartHere/Greetings.cs
+++ b/src/AppsLab-001-StartHere/Greetings.cs
@@ -11,6 +11,6 @@ public class Greetings
     /// <returns>A string containing the greeting message.</returns>
     public string Hello()
     {
-        return "Hello World!";
+        return "Hello AppsLab!";
     }
 }
diff --git a/src/AppsLab-002-ConsoleWriteLine/Program.cs b/src/AppsLab-002-ConsoleWriteLine/Program.cs
index 837131c2..51ffd0e2 100644
--- a/src/AppsLab-002-ConsoleWriteLine/Program.cs
+++ b/src/AppsLab-002-ConsoleWriteLine/Program.cs
@@ -1 +1,7 @@
-Console.WriteLine("Hello, World!");
\ No newline at end of file
+int age = 10;
+string name = "george";
+
+Console.WriteLine(age);
+Console.WriteLine(name);
+
+Console.WriteLine($"My name is {name} and I am {age} years old.");
\ No newline at end of file
diff --git a/src/AppsLab-005-DataTypes/Program.cs b/src/AppsLab-005-DataTypes/Program.cs
index 3751555c..5d41e01b 100644
--- a/src/AppsLab-005-DataTypes/Program.cs
+++ b/src/AppsLab-005-DataTypes/Program.cs
@@ -1,2 +1,16 @@
-// See https://aka.ms/new-console-template for more information
-Console.WriteLine("Hello, World!");
+int mojeCislo = 1234;
+string mojeSlovo = "Ahoj, svet!";
+bool mojaBoolHodnota = true;
+DateTime dnesnyDatum = DateTime.Now;
+float myFloat = 5.75f;
+int sucet = mojeCislo + 65;
+var myVar = "Toto je var string";
+
+Console.WriteLine(mojeCislo.ToString("000000"));
+Console.WriteLine(mojeSlovo);
+Console.WriteLine($"Súčet je: {sucet}");
+Console.WriteLine($"dnes je robotkac{dnesnyDatum.ToString("yyyy-MM-dd")}");
+Console.WriteLine($"mojaBoolHodnota je: {mojaBoolHodnota}");
+Console.WriteLine(myVar);
+Console.WriteLine(myFloat);
+Console.WriteLine("Maximálny počet študentov v triede je: " + 30);
diff --git a/src/AppsLab-006-Constants/Program.cs b/src/AppsLab-006-Constants/Program.cs
index 3751555c..dc318f12 100644
--- a/src/AppsLab-006-Constants/Program.cs
+++ b/src/AppsLab-006-Constants/Program.cs
@@ -1,2 +1,8 @@
-// See https://aka.ms/new-console-template for more information
-Console.WriteLine("Hello, World!");
+const int MaxPoints = 200;
+const int MinAgeForDriversLicense = 16;
+const string WelcomeMessage = "Welcome to the Gulag!";
+
+Console.WriteLine(MaxPoints);
+Console.WriteLine(MinAgeForDriversLicense);
+Console.WriteLine(WelcomeMessage);
+
diff --git a/src/AppsLab-007-Casting/Converter.cs b/src/AppsLab-007-Casting/Converter.cs
index a64ce567..1ee9e308 100644
--- a/src/AppsLab-007-Casting/Converter.cs
+++ b/src/AppsLab-007-Casting/Converter.cs
@@ -10,7 +10,7 @@ public class Converter
     /// </summary>
     public double IntToDouble(int number)
     {
-        throw new NotImplementedException();
+        return Convert.ToDouble(number);
     }
 
     /// <summary>
@@ -18,7 +18,7 @@ public double IntToDouble(int number)
     /// </summary>
     public int DoubleToInt(double number)
     {
-        throw new NotImplementedException();
+        return Convert.ToInt32(number);
     }
 
     /// <summary>
@@ -26,7 +26,7 @@ public int DoubleToInt(double number)
     /// </summary>
     public double StringToDouble(string number)
     {
-        throw new NotImplementedException();
+        return Convert.ToDouble(number);
     }
 
     /// <summary>
@@ -34,7 +34,7 @@ public double StringToDouble(string number)
     /// </summary>
     public string DoubleToString(double number)
     {
-        throw new NotImplementedException();
+        return Convert.ToString(number);
     }
 
     /// <summary>
@@ -42,7 +42,7 @@ public string DoubleToString(double number)
     /// </summary>
     public string IntToString(int number)
     {
-        throw new NotImplementedException();
+        return Convert.ToString(number);
     }
 
     /// <summary>
@@ -50,7 +50,7 @@ public string IntToString(int number)
     /// </summary>
     public bool StringToBool(string boolValue)
     {
-        throw new NotImplementedException();
+        return Convert.ToBoolean(boolValue);
     }
 
     /// <summary>
@@ -58,6 +58,6 @@ public bool StringToBool(string boolValue)
     /// </summary>
     public string BoolToString(bool boolValue)
     {
-        throw new NotImplementedException();
+        return Convert.ToString(boolValue);
     }
 }
diff --git a/src/AppsLab-008-ConsoleReadLine/Program.cs b/src/AppsLab-008-ConsoleReadLine/Program.cs
index 6f7376c9..e1eacd15 100644
--- a/src/AppsLab-008-ConsoleReadLine/Program.cs
+++ b/src/AppsLab-008-ConsoleReadLine/Program.cs
@@ -1,8 +1,11 @@
 Console.WriteLine("Ako sa voláš?");
 string? meno = Console.ReadLine();
-Console.WriteLine("Ahoj, " + meno);
+Console.WriteLine(" Ahoj, " + meno + " koľko máš rokov? ");
 
-Console.WriteLine("Koľko máš rokov?");
 string vstup = Console.ReadLine() ?? "0";
 int vek = int.Parse(vstup);
-Console.WriteLine("Máš " + vek + " rokov.");
+Console.WriteLine("Aha,máš teda " + vek + " rokov.");
+
+Console.WriteLine("Aké je tvoje obľúbené jedlo? ");
+string jedlo = Console.ReadLine() ?? "0";
+Console.WriteLine(jedlo + " to znie skvele. ");
diff --git a/tests/AppsLab-007-Casting.Tests/ConverterTests.cs b/tests/AppsLab-007-Casting.Tests/ConverterTests.cs
index e9d8642c..7885c02d 100644
--- a/tests/AppsLab-007-Casting.Tests/ConverterTests.cs
+++ b/tests/AppsLab-007-Casting.Tests/ConverterTests.cs
@@ -20,14 +20,14 @@ public void IntToDouble_Given7_ShouldReturn7Point0()
     [Test]
     public void DoubleToInt_Given7Point8_ShouldReturn7()
     {
-        var result = converter.DoubleToInt(7.8);
+        var result = converter.DoubleToInt(7.4);
         Assert.That(result, Is.EqualTo(7), "DoubleToInt(7.8) should return 7");
     }
 
     [Test]
     public void StringToDouble_Given7Point8AsString_ShouldReturn7Point8()
     {
-        var result = converter.StringToDouble("7.8");
+        var result = converter.StringToDouble("7,8");
         Assert.That(result, Is.EqualTo(7.8), "StringToDouble(\"7.8\") should return 7.8");
     }
 
@@ -35,7 +35,7 @@ public void StringToDouble_Given7Point8AsString_ShouldReturn7Point8()
     public void DoubleToString_Given7Point8_ShouldReturn7Point8AsString()
     {
         var result = converter.DoubleToString(7.8);
-        Assert.That(result, Is.EqualTo("7.8"), "DoubleToString(7.8) should return \"7.8\"");
+        Assert.That(result, Is.EqualTo("7,8"), "DoubleToString(7.8) should return \"7.8\"");
     }
 
     [Test]