diff --git a/answers/exercise1.sql b/answers/exercise1.sql
index e69de29..130fbf4 100644
--- a/answers/exercise1.sql
+++ b/answers/exercise1.sql
@@ -0,0 +1 @@
+SELECT * FROM Enrolment LEFT JOIN Students ON Enrolment.StudentID=Students.StudentID;
\ No newline at end of file
diff --git a/answers/exercise2.sql b/answers/exercise2.sql
index e69de29..fb593e8 100644
--- a/answers/exercise2.sql
+++ b/answers/exercise2.sql
@@ -0,0 +1 @@
+SELECT * FROM Students INNER JOIN Enrolment ON Enrolment.StudentID=Students.StudentID;
\ No newline at end of file
diff --git a/answers/exercise3.sql b/answers/exercise3.sql
index e69de29..b3f1d81 100644
--- a/answers/exercise3.sql
+++ b/answers/exercise3.sql
@@ -0,0 +1,5 @@
+SELECT * FROM Students INNER JOIN 
+Enrolment ON Enrolment.StudentID=Students.StudentID  
+UNION 
+SELECT * FROM Enrolment INNER JOIN
+Students ON Enrolment.StudentID=Students.StudentID;
diff --git a/answers/exercise4.sql b/answers/exercise4.sql
index e69de29..2e86a2a 100644
--- a/answers/exercise4.sql
+++ b/answers/exercise4.sql
@@ -0,0 +1 @@
+SELECT Country,count(*) FROM Students GROUP BY Country;
\ No newline at end of file
diff --git a/answers/exercise5.sql b/answers/exercise5.sql
index e69de29..d8f8d16 100644
--- a/answers/exercise5.sql
+++ b/answers/exercise5.sql
@@ -0,0 +1 @@
+SELECT count(StudentID) FROM Students GROUP BY Country ORDER BY count(*) DESC;
diff --git a/answers/exercise6.sql b/answers/exercise6.sql
index e69de29..6fec64f 100644
--- a/answers/exercise6.sql
+++ b/answers/exercise6.sql
@@ -0,0 +1,2 @@
+SELECT COUNT(*) FROM Students GROUP BY Country ORDER BY COUNT(*) >10 ASC;
+