Update app.py

app.py

@@ -209,7 +209,7 @@ with gr.Blocks() as demo:
         
         with gr.Tab("Math"):
             math_cot = gr.Checkbox(label="CoT", info="If you want to see CoT result, please check the box.")
-            math_question_list = gr.Dropdown(math_questions, value=callable, label="Math Question", every=0.1, contianer=False)
+            math_question_list = gr.Dropdown(math_questions, value=callable(math_questions), label="Math Question", every=0.1, contianer=False)
 
             with gr.Column():
                 with gr.Row(elem_id="model1_response"):