implement TODOs exept bonus tasks

Report.md

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+# Answers of theoretical questions
+
+## 1:
+
+**outputs:**
+
+    Calling run()
+    Running in: main
+    Calling start()
+    Running in: Thread-2
+
+this is because of the difference between run() and start() method.
+when you call run method, it only calls the run function of StartVsRun class and it runs on the main thread;
+but when you call **start** method it runs on new thread(here we name it Thread-2)
+---
+## 2:
+
+**outputs:**
+
+    Main thread ends.
+    Daemon thread running...
+
+if we set daemon true The **JVM** terminates the thread right after the main thread ends. 
+if we don't set the thread as a daemon, after the main thread ended it will continue it's work until it will be done(print Daemon thread running 20 times).
+
+
+### Real-Life use case of daemon threads:
+
+- Memory and Resource Management(like java's garbage collector)
+- Infrastructure & Telemetry Monitoring(like send a ping to a central server every 5 seconds)
+- Spell Checkers
+
+## 3:
+
+**output:**
+
+    Thread is running using a ...!
+
+it calls **Lambda Expression** and it is shorter and faster way than making a class which extend thread or implement runnable to have another thread for our works.