diff --git a/S30 FAANMG Problem #11 b/S30 FAANMG Problem #11
new file mode 100644
index 0000000..eaf001e
--- /dev/null
+++ b/S30 FAANMG Problem #11	
@@ -0,0 +1,8 @@
+--MockSQL - S30 FAANMG Problem #11 - Top Travellers
+SELECT  u.name,
+        IFNULL(SUM(r.distance),0) AS travelled_distance
+FROM users u
+LEFT JOIN rides r
+on u.id = r.user_id
+GROUP BY u.id
+ORDER BY SUM(r.distance) DESC, u.name;
\ No newline at end of file
diff --git a/S30 FAANMG Problem #12 b/S30 FAANMG Problem #12
new file mode 100644
index 0000000..dee3404
--- /dev/null
+++ b/S30 FAANMG Problem #12	
@@ -0,0 +1,5 @@
+--MockSQL - S30 FAANMG Problem #12 - Apples & Oranges
+SELECT  sale_date,
+        SUM(CASE fruit WHEN 'apples' THEN sold_num ELSE 0 END) - SUM(CASE fruit WHEN 'oranges' THEN sold_num ELSE 0 END) AS diff
+FROM sales
+GROUP BY 1;