A few puzzles were added

src/com/company/Puzzle10_ThreadDestroy.java

@@ -0,0 +1,16 @@
+package com.company;
+
+/**
+ * Puzzler for Java 8
+ */
+public class Puzzle10_ThreadDestroy {
+
+    public static void main(String[] args) {
+        Thread.currentThread().destroy();
+    }
+
+    // Все ок, текущий поток завершится
+    // Не скомпилируется
+    // NoSuchMethodError
+    // InterruptedException
+}

src/com/company/Puzzle11_ThreadStop.java

@@ -0,0 +1,19 @@
+package com.company;
+
+/**
+ * Java 8
+ */
+public class Puzzle11_ThreadStop {
+    public static class MyException extends Exception {
+
+    }
+
+    public static void main(String[] args) throws Exception {
+        Thread.currentThread().stop(new MyException());
+    }
+
+    // Не скомпилируется
+    // Поток остановится с исключением MyException
+    // UnsupportedOperationException
+    // InterruptedException
+}

src/com/company/Puzzle12_SingleFile.java

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+package com.company;
+
+/**
+ * Java 11
+ */
+public class Puzzle12_SingleFile {
+    public static void main(String[] args) {
+        System.out.println("Hello, World!");
+    }
+}
+
+// java Puzzle12_SingleFile
+// JEP: 330
+
+// Hello, World!
+// ClassNotFoundException
+// Ты валенок, надо компилить через javac
+// Еще вариант нужен

src/com/company/Puzzle13_Var.java

@@ -0,0 +1,27 @@
+package com.company;
+
+public class Puzzle13_Var {
+    public static void executor(Object parameter) {
+        // parameter.method2(); // should be uncommented    // line 1
+    }
+
+    public static void main(String[] args) {
+        var value = new Object(){                           // line 2
+            void method1() {
+                System.out.println("Hello from method 1");
+            }
+            void method2() {
+                System.out.println("Hello from method 2");
+            }
+        };
+
+        value.method1();                                    // line 3
+        executor(value);                                    // line 4
+    }
+}
+
+// Hello from method 1, Hello from method 2
+// Compile error at line 1
+// Compile error at line 2
+// Compile error at line 3
+// Compile error at line 4

src/com/company/Puzzle14_Double.java

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+package com.company;
+
+public class Puzzle14_Double {
+    public static void main(String[] args) {
+        System.out.println(
+                Math.min(
+                        Double.MIN_VALUE, 0.0d
+                )
+        );
+    }
+}
+
+// 0x0.0000000000001P-1022 - Double.MIN_VALUE
+// 0.0d
+// Doesn't compile

src/com/company/Puzzle15_Comment.java

@@ -0,0 +1,13 @@
+package com.company;
+
+public class Puzzle15_Comment {
+    public static void main(String[] args) {
+        // this is comment
+        // \u000d System.out.println("Commented too!");
+    }
+}
+
+// Nothing
+// Commented too
+// Doesn't compile
+// Exception at runtime