diff --git a/problems/two-sum.json b/problems/two-sum.json
new file mode 100644
index 0000000..a1c45ff
--- /dev/null
+++ b/problems/two-sum.json
@@ -0,0 +1,7 @@
+[
+  { "input": [[2, 7, 11, 15], 9], "expected": true },
+  { "input": [[1, 2, 3], 7], "expected": false },
+  { "input": [[3, 3], 6], "expected": true },
+  { "input": [[-1, -2, -3, -4], -6], "expected": true },
+  { "input": [[5], 5], "expected": false }
+]