change prompt for more creativity, and reduce overall number of questions generated

backend/tasks/create_bench_config_file.py

@@ -197,10 +197,10 @@ class CreateBenchConfigTask:
                 },
                 "single_shot_question_generation": {
                     "run": True,
-                    "additional_instructions": "Generate questions to test a curious adult",
+                    "additional_instructions": "Generate rich and creative questions to test a curious adult",
                     "chunk_sampling": {
                         "mode": "count",
-                        "value": 10,
+                        "value": 5,
                         "random_seed": 123,
                     },
                 },