diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..e7e9d11
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,2 @@
+# Default ignored files
+/workspace.xml
diff --git a/.idea/SQL.LetsGetTogether.iml b/.idea/SQL.LetsGetTogether.iml
new file mode 100644
index 0000000..d6ebd48
--- /dev/null
+++ b/.idea/SQL.LetsGetTogether.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..28a804d
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="ES6" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..a731dc1
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/SQL.LetsGetTogether.iml" filepath="$PROJECT_DIR$/.idea/SQL.LetsGetTogether.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/answers/exercise1.sql b/answers/exercise1.sql
index e69de29..af35c9e 100644
--- a/answers/exercise1.sql
+++ b/answers/exercise1.sql
@@ -0,0 +1,4 @@
+SELECT *
+FROM Enrolments AS E
+LEFT JOIN Students AS S
+ON E.STUDENT_ID=S.STUDENT_ID;
\ No newline at end of file
diff --git a/answers/exercise2.sql b/answers/exercise2.sql
index e69de29..21195a8 100644
--- a/answers/exercise2.sql
+++ b/answers/exercise2.sql
@@ -0,0 +1,4 @@
+SELECT *
+FROM Enrolments
+INNER JOIN STUDENTS
+ON Enrolments.StudentID=Students.StudentID;
\ No newline at end of file
diff --git a/answers/exercise3.sql b/answers/exercise3.sql
index e69de29..0ea8cbd 100644
--- a/answers/exercise3.sql
+++ b/answers/exercise3.sql
@@ -0,0 +1,4 @@
+SELECT *
+FROM Enrolments
+LEFT JOIN STUDENTS
+ON Enrolments.StudentID=Students.StudentID;
\ No newline at end of file
diff --git a/answers/exercise4.sql b/answers/exercise4.sql
index e69de29..7533456 100644
--- a/answers/exercise4.sql
+++ b/answers/exercise4.sql
@@ -0,0 +1 @@
+SELECT COUNTRY, COUNT(COUNTRY) AS STUDENT_PER_COUNTRY FROM STUDENTS GROUP BY COUNTRY;
\ No newline at end of file
diff --git a/answers/exercise5.sql b/answers/exercise5.sql
index e69de29..f0c02b6 100644
--- a/answers/exercise5.sql
+++ b/answers/exercise5.sql
@@ -0,0 +1 @@
+SELECT COUNTRY, COUNT(COUNTRY) AS STUDENTS_PER_COUNTRY FROM STUDENTS GROUP BY COUNTRY ORDER BY COUNTRY ASC;
\ No newline at end of file
diff --git a/answers/exercise6.sql b/answers/exercise6.sql
index e69de29..3bceec3 100644
--- a/answers/exercise6.sql
+++ b/answers/exercise6.sql
@@ -0,0 +1 @@
+SELECT COUNTRY, COUNT(COUNTRY) AS STUDENTS_PER_COUNTRY FROM STUDENTS GROUP BY COUNTRY HAVING STUDENTS_PER_COUNTRY > 10 ORDER BY STUDENTS_PER_COUNTRY;
\ No newline at end of file